Primary election competitiveness in state and federal government, 2024
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Last updated on May 18, 2025
Ballotpedia's 2024 state primary election competitiveness data analyzes allstate legislative,state executive, andcongressional elections that took place in 2024. This analysis provides an understanding of how competitive the year's primary elections were using metrics including the number of incumbents who did not seek re-election, the total number of contested primaries, and the number of incumbents with primary challengers. Historical comparisons are also provided for context.Click here to learn more about how Ballotpedia defines and calculates competitiveness figures.
Ballotpedia has published comprehensive competitiveness data from each election cycle since 2010. In 2024, this includes data from state legislative, state executive, and congressional filings.
HIGHLIGHTS
On this page you will find:
- Aggregate primary competitiveness data, including historical comparisons with even-year election cycles since 2014.Click here to view the most recent odd-year analysis.
- Primary competitiveness by office type
- State-specific competitiveness figures.
- An overview of this analysis'methodology anddefinitions
Overview
The following statistics are an aggregate of primary election competitiveness data across all states with completed filing deadlines unless otherwise noted. Corresponding data from 2022, 2020, 2018, 2016, and 2014 are provided for comparative purposes. For state-specific competitiveness data in 2024, clickhere. Learn more about Ballotpedia's primary competitiveness methodologyhere.
The table below shows aggregate primary competitiveness and incumbency statistics by office in 2024. You may need to move the table horizontally using the scrollbar at the bottom of the table depending on your screen size.
| 2024 aggregate primary competitiveness data | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| U.S. Senate | 34 | 34 | 8 | 214 | 68 | 14 | 22 | 2 | 55.9% | 13 | 54.2% | |||
| U.S. House | 435 | 435 | 50 | 1,770 | 801 | 137 | 189 | 58 | 47.9% | 184 | 47.7% | |||
| State executive | 151 | 155 | 70 | 533 | 259 | 31 | 57 | 23 | 42.9% | 36 | 41.6% | |||
| State legislature | 5,470 | 5,807 | 962 | 11,801 | 10,642 | 608 | 1,005 | 118 | 16.3% | 1,039 | 21.4% | |||
| Totals | 6,090 | 6,431 | 1,090 | 14,318 | 11,768 | 790 | 1,273 | 201 | 19.2% | 1,272 | 23.8% | |||
2022
Click [show] on the table below to view aggregate primary competitiveness data from 2022.
| 2022 aggregate primary competitiveness data | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| U.S. Senate | 34 | 34 | 6 | 335 | 64 | 23 | 26 | 4 | 82.8% | 21 | 75.0% | |||
| U.S. House | 435 | 435 | 60 | 2,138 | 795 | 165 | 230 | 67 | 58.1% | 228 | 59.8% | |||
| State executive | 271 | 274 | 89 | 1,167 | 516 | 91 | 137 | 27 | 49.4% | 97 | 50.3% | |||
| State legislature | 5,862 | 6,278 | 1,492 | 13,443 | 11,419 | 821 | 1,387 | 126 | 20.4% | 1,299 | 26.8% | |||
| Totals | 6,602 | 7,021 | 1,647 | 17,083 | 12,794 | 1,100 | 1,780 | 224 | 24.3% | 1,645 | 30.2% | |||
2020
Click [show] on the table below to view aggregate primary competitiveness data from 2020.
| 2020 aggregate primary competitiveness data | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| U.S. Senate | 33 | 33 | 4 | 242 | 65 | 22 | 22 | 1 | 69.2% | 15 | 53.6% | |||
| U.S. House | 435 | 435 | 41 | 2,052 | 794 | 198 | 200 | 63 | 58.1% | 198 | 50.3% | |||
| State executives | 144 | 144 | 49 | 510 | 256 | 36 | 43 | 21 | 39.1% | 35 | 36.5% | |||
| State legislature | 5,497 | 5,875 | 876 | 12,353 | 10,746 | 836 | 882 | 109 | 17.0% | 1,006 | 20.1% | |||
| Totals | 6,109 | 6,487 | 970 | 15,157 | 11,861 | 1,092 | 1,147 | 194 | 20.5% | 1,254 | 22.7% | |||
2018
Click [show] on the table below to view aggregate primary competitiveness data from 2018.
| 2018 aggregate primary competitiveness data | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| U.S. Senate | 33 | 33 | 3 | 249 | 64 | 14 | 29 | 2 | 70.3% | 15 | 50.0% | |||
| U.S. House | 435 | 435 | 60 | 2,015 | 796 | 241 | 170 | 55 | 58.5% | 190 | 50.8% | |||
| State executives | 264 | 264 | 100 | 1,029 | 490 | 96 | 106 | 21 | 45.5% | 67 | 40.4% | |||
| State legislature[3] | 5,612 | 6,065 | 1,194 | 13,297 | 10,977 | 1,005 | 1,011 | 107 | 19.3% | 1,082 | 22.2% | |||
| Totals | 6,344 | 6,797 | 1,357 | 16,590 | 12,327 | 1,356 | 1,316 | 185 | 23.2% | 1,354 | 24.9% | |||
2016
Click [show] on the table below to view aggregate primary competitiveness data from 2016.
| 2016 aggregate primary competitiveness data | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| U.S. Senate | 36 | 36 | 5 | 266 | 69 | 20 | 22 | 3 | 65.2% | 18 | 58.1% | |||
| U.S. House | 435 | 435 | 45 | 1,588 | 799 | 133 | 170 | 55 | 44.8% | 196 | 50.4% | |||
| State executives | 91 | 91 | 42 | 300 | 170 | 28 | 29 | 9 | 38.8% | 20 | 39.2% | |||
| State legislature[4] | 5,538 | 5,916 | 1,032 | 11,918 | 10,827 | 752 | 940 | 108 | 16.6% | 985 | 20.2% | |||
| Totals | 6,100 | 6,478 | 1,124 | 14,072 | 11,865 | 933 | 1,161 | 175 | 19.1% | 1,219 | 22.8% | |||
2014
Click [show] on the table below to view aggregate primary competitiveness data from 2014.
| 2014 aggregate primary competitiveness data | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| U.S. Senate | 31 | 31 | 6 | 191 | 61 | 15 | 23 | 1 | 63.9% | 14 | 56.0% | |||
| U.S. House | 435 | 435 | 43 | 1,471 | 799 | 119 | 161 | 53 | 41.7% | 167 | 42.6% | |||
| State executives | 211 | 211 | 68 | 728 | 413 | 71 | 79 | 8 | 38.3% | 51 | 36.4% | |||
| State legislature[5] | 5,598 | 6,051 | 1,019 | 12,046 | 10,949 | 646 | 958 | 94 | 15.5% | 983 | 19.5% | |||
| Totals | 6,275 | 6,728 | 1,136 | 14,436 | 12,222 | 851 | 1,221 | 156 | 18.2% | 1,215 | 21.7% | |||
Breakdown by office
The tables below show primary competitiveness statistics overall and broken down by office type. Figures are shown as percentages with overall figures shown first. Click [show] on the bars beneath the table to view statistics by office type.
| Comparison of overall primary competitiveness percentages, 2010-2024 | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 2012 | 2014 | 2016 | 2018 | 2020 | 2022 | 2024 | Average | |||||||||
| Open seats (%) | 18.7% | 21.9% | 16.9% | 17.4% | 20.0% | 15.0% | 23.5% | 16.9% | 18.8% | ||||||||
| Total primaries (%) | 18.3% | 18.5% | 18.2% | 19.1% | 23.2% | 20.5% | 24.3% | 19.2% | 20.2% | ||||||||
| Inc. in contested primaries (%) | 20.0% | 23.3% | 21.7% | 22.8% | 24.9% | 22.7% | 30.2% | 23.8% | 23.7% | ||||||||
| U.S. Senate | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 2012 | 2014 | 2016 | 2018 | 2020 | 2022 | 2024 | Average | |||||||||
| Open seats (%) | - | - | 19.4% | 13.9% | 9.1% | 12.1% | 17.6% | 23.5% | 15.9% | ||||||||
| Total primaries (%) | - | - | 63.9% | 65.2% | 70.3% | 69.2% | 82.8% | 55.9% | 67.8% | ||||||||
| Inc. in contested primaries (%) | - | - | 56.0% | 58.1% | 50.0% | 53.6% | 75.0% | 54.2% | 56.8% | ||||||||
| U.S. House | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 2012 | 2014 | 2016 | 2018 | 2020 | 2022 | 2024 | Average | |||||||||
| Open seats (%) | - | - | 9.9% | 10.3% | 13.8% | 9.4% | 13.8% | 11.5% | 11.5% | ||||||||
| Total primaries (%) | - | - | 41.7% | 44.8% | 58.5% | 58.1% | 58.1% | 47.9% | 51.5% | ||||||||
| Inc. in contested primaries (%) | - | - | 42.6% | 50.4% | 50.8% | 50.3% | 59.8% | 47.7% | 50.2% | ||||||||
| State executive | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 2012 | 2014 | 2016 | 2018 | 2020 | 2022 | 2024 | Average | |||||||||
| Open seats (%) | - | - | 32.2% | 46.2% | 37.9% | 34.0% | 32.5% | 45.2% | 36.7% | ||||||||
| Total primaries (%) | - | - | 38.3% | 38.8% | 45.5% | 39.1% | 49.4% | 42.9% | 43.4% | ||||||||
| Inc. in contested primaries (%) | - | - | 36.4% | 39.2% | 40.4% | 36.5% | 50.3% | 40.9% | 41.7% | ||||||||
| State legislative | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 2012 | 2014 | 2016 | 2018 | 2020 | 2022 | 2024 | Average | |||||||||
| Open seats (%) | 18.7% | 21.9% | 16.8% | 17.4% | 19.7% | 14.9% | 23.8% | 16.6% | 18.8% | ||||||||
| Total primaries (%) | 18.3% | 18.5% | 15.5% | 16.6% | 19.3% | 17.0% | 20.4% | 16.3% | 17.8% | ||||||||
| Inc. in contested primaries (%) | 20.0% | 23.3% | 19.5% | 20.2% | 22.2% | 20.1% | 26.8% | 21.4% | 21.7% | ||||||||
The charts below show primary competitiveness statistics broken down by office type. The figures shown are total numbers. This analysis uses the following definitions:
- Total candidates: the total number of major party candidates running in primary elections.[6]
- Total seats: the total number of seats or offices up for election with the possibility of a primary election.
- Open seats: the total number of seats, out of the total seats figure, where the incumbent did not file to run for re-election or filed to run for re-election but withdrew before the primary filing deadline.
- Incumbents contested: the total number of incumbents in contested primaries.
- Democratic/Republican/Top-two primaries: the total number of these types of primaries where at least one candidate could have failed to advance to the general election.
- Total primaries: a combination of all Democratic, Republican, and top-two primaries where at least one candidate could have failed to advance to the general election.
U.S. Senate
U.S. House
State executive
State legislative
Breakdown by state
Methodology
This section provides state-specific data on primary competitiveness numbers. Each section contains a state overview as well as state-specific looks at the four categories of elections covered in this analysis: U.S. Senate, U.S. House, state executive, and state legislative.
For each state, the categories of elections are shown as historical tables with data from previous election cycles where races in that category were up for election. All 2020 numbers reflect races where there was, or could have been, a primary. It does not include numbers for races that use conventions or some other method as the sole form of nomination to the general election ballot. Due to the expansion of Ballotpedia's coverage and changes made to the competitiveness analysis, previous years' numbers may vary. Common reasons include the exclusion of offices that were outside of Ballotpedia's coverage at the time and the inclusion of races that use conventions or some other method as the sole means of nomination.
If you have any questions about the methodology used in this analysis, pleaseemail us.
Definitions
Below are definitions of terms and metrics used in this analysis.
- Districts/offices: the number of districts or offices up for election. Since some state legislative districts and state executive offices are represented bymore than one officeholder, this number may be smaller than the number of seats.
- Seats: the number of seats up for election.
- Open seats: the number of open seats. This analysis defines a seat as open if the incumbent did not file to run for re-election or filed but withdrew and did not appear on any ballot for the district/office.[7]
- Candidates: the number of candidates participating in primaries. If the race is atop-two primary, all candidates are counted. In all other primaries, only major-party candidates are counted.[8]
- Possible primaries: this figure reflects the number of major-party primaries that are possible. In most cases, this figure is twice the number of districts/offices up for election, since every district could have a Democratic and a Republican primary. Iftop-two primaries are used, there is only one primary per district/office. If a convention is the only method of nomination, it is not counted as a possible primary.[9][10]
- Contested Democratic/Republican/top-two primaries: these figures show the total number of primaries where at least one candidate will be defeated, meaning there are more candidates in the primary than there are seats.
- % of contested primaries: calculated by dividing the sum of all contested primaries by the number of possible primaries.
- Incumbents in contested primaries: the number of incumbents who appear on a primary ballot where he or she could be defeated.[11]
- % of incumbents in contested primaries: calculated by dividing the number of incumbents in contested primaries by the number of incumbents seeking re-election.[12]
Alabama
Alabama's filing deadline was on November 10, 2023. Candidates filed to run for U.S. House and state executive offices. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Alabama primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 7 | 7 | 1 | 36 | 14 | 2 | 6 | 57.1% | 6 | 85.7% | ||||
| State executive | 5 | 5 | 2 | 12 | 10 | 0 | 3 | 30.0% | 1 | 33.3% | ||||
| Totals | 12 | 12 | 3 | 48 | 24 | 2 | 9 | 45.8% | 7 | 70.0% | ||||
U.S. House
| Alabama U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 7 | 7 | 1 | 36 | 14 | 2 | 6 | 57.1% | 6 | 85.7% | ||||
| 2022 | 7 | 7 | 1 | 21 | 14 | 3 | 2 | 35.7% | 1 | 16.7% | ||||
| 2020 | 7 | 7 | 2 | 25 | 14 | 2 | 3 | 35.7% | 1 | 20.0% | ||||
| 2018 | 7 | 7 | 0 | 23 | 14 | 4 | 3 | 50.0% | 3 | 42.9% | ||||
| 2016 | 7 | 7 | 0 | 16 | 14 | 0 | 4 | 28.6% | 4 | 57.1% | ||||
| 2014 | 7 | 7 | 1 | 20 | 14 | 1 | 3 | 28.6% | 3 | 50.0% | ||||
State executives
| Alabama state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 5 | 5 | 2 | 12 | 10 | 0 | 3 | 30.0% | 1 | 33.3% | ||||
| 2022 | 13 | 13 | 3 | 43 | 26 | 1 | 9 | 38.5% | 6 | 60.0% | ||||
| 2020 | 5 | 5 | 2 | 18 | 10 | 2 | 1 | 30.0% | 1 | 33.3% | ||||
| 2018 | 13 | 13 | 5 | 53 | 26 | 3 | 11 | 53.8% | 6 | 75.0% | ||||
| 2016 | 1 | 1 | 0 | 2 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| 2014 | 9 | 9 | 2 | 25 | 18 | 1 | 6 | 38.9% | 4 | 57.1% | ||||
Alaska
Alaska's primary filing deadline was on June 1, 2024. Candidates filed to run for U.S. House and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Alaska primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-four primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| U.S. House | 1 | 1 | 0 | 12 | 1 | 1 | 100.0% | 1 | 100.0% | |||||
| State legislature | 50 | 50 | 7 | 115 | 50 | 2 | 4.0% | 1 | 2.3% | |||||
| Totals | 51 | 51 | 7 | 127 | 51 | 3 | 5.9% | 2 | 4.5% | |||||
U.S. House
| Alaska U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-four primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| 2024 | 1 | 1 | 0 | 12 | 1 | N/A | N/A | 1 | 100.0% | 1 | 100.0% | |||
| 2022 | 1 | 1 | 0 | 22 | 1 | N/A | N/A | 1 | 100.0% | 1 | 100.0% | |||
| 2020 | 1 | 1 | 0 | 6 | 2 | 1 | 1 | N/A | 100.0% | 1 | 100.0% | |||
| 2018 | 1 | 1 | 0 | 7 | 2 | 1 | 1 | N/A | 100.0% | 1 | 100.0% | |||
| 2016 | 1 | 1 | 0 | 7 | 2 | 1 | 1 | N/A | 100.0% | 1 | 100.0% | |||
| 2014 | 1 | 1 | 0 | 6 | 2 | 1 | 1 | N/A | 100.0% | 1 | 100.0% | |||
State legislature
| Alaska state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-four primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| 2024 | 50 | 50 | 7 | 115 | 50 | N/A | N/A | 2 | 4.0% | 1 | 2.3% | |||
| 2022 | 59 | 59 | 20 | 147 | 59 | N/A | N/A | 1 | 1.7% | 0 | 0.0% | |||
| 2020 | 50 | 50 | 3 | 109 | 100 | 7 | 23 | N/A | 30.0% | 19 | 40.4% | |||
| 2018 | 50 | 50 | 13 | 126 | 100 | 5 | 23 | N/A | 28.0% | 11 | 29.7% | |||
| 2016 | 50 | 50 | 9 | 107 | 100 | 4 | 18 | N/A | 22.0% | 12 | 29.3% | |||
| 2014 | 54 | 54 | 8 | 106 | 108 | 2 | 11 | N/A | 12.0% | 4 | 8.5% | |||
Arizona
Arizona's primary filing deadline was on April 8, 2024. Candidates filed to run for the U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Arizona primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 1 | 4 | 2 | 0 | 1 | 50.0% | 0 | N/A | ||||
| U.S. House | 9 | 9 | 2 | 38 | 18 | 2 | 6 | 44.4% | 3 | 42.9% | ||||
| State executives | 3 | 3 | 2 | 6 | 2 | 1 | 1 | 100% | 1 | 100.0% | ||||
| State legislature | 60 | 90 | 20 | 196 | 120 | 13 | 20 | 27.5% | 32 | 45.7% | ||||
| Totals | 73 | 103 | 25 | 244 | 142 | 16 | 28 | 31.0% | 36 | 46.2% | ||||
U.S. Senate
| Arizona U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 1 | 4 | 2 | 0 | 1 | 50.0% | 0 | N/A | ||||
| 2022 | 1 | 1 | 0 | 6 | 2 | 0 | 1 | 50.0% | 0 | N/A | ||||
| 2018 | 1 | 1 | 1 | 5 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2016 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
U.S. House
| Arizona U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 9 | 9 | 2 | 38 | 18 | 2 | 6 | 44.4% | 3 | 42.9% | ||||
| 2022 | 9 | 9 | 1 | 40 | 18 | 2 | 7 | 50.0% | 3 | 37.5% | ||||
| 2020 | 9 | 9 | 0 | 34 | 18 | 6 | 4 | 55.6% | 3 | 33.3% | ||||
| 2018 | 9 | 9 | 2 | 38 | 18 | 5 | 5 | 55.6% | 2 | 28.6% | ||||
| 2016 | 9 | 9 | 2 | 31 | 18 | 4 | 7 | 61.1% | 3 | 42.9% | ||||
| 2014 | 9 | 9 | 1 | 25 | 18 | 1 | 4 | 27.8% | 1 | 12.5% | ||||
State executives
| Arizona state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 3 | 3 | 2 | 6 | 2 | 1 | 1 | 100% | 1 | 100.0% | ||||
| 2022 | 7 | 8 | 3 | 35 | 14 | 2 | 6 | 57.1% | 2 | 50.0% | ||||
| 2020 | 3 | 3 | 1 | 6 | 6 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2018 | 8 | 8 | 1 | 30 | 16 | 3 | 5 | 50.0% | 5 | 83.3% | ||||
| 2016 | 3 | 3 | 1 | 7 | 6 | 0 | 1 | 16.7% | 2 | 100.0% | ||||
| 2014 | 8 | 8 | 5 | 27 | 16 | 6 | 1 | 43.8% | 2 | 66.7% | ||||
State legislature
Arizona usesmulti-member state legislative districts, meaning there are multiple seats in some or all state legislative districts. The percentage of total contested primaries divides the number of primaries by the number of districts multiplied by two to account for all possible Democratic and Republican primaries.
| Arizona state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 60 | 90 | 20 | 196 | 120 | 13 | 20 | 27.5% | 32 | 45.7% | ||||
| 2022 | 60 | 90 | 43 | 209 | 120 | 15 | 23 | 31.7% | 26 | 52.0% | ||||
| 2020 | 60 | 90 | 17 | 177 | 120 | 12 | 14 | 21.7% | 27 | 37.0% | ||||
| 2018 | 60 | 90 | 33 | 210 | 120 | 21 | 21 | 35.0% | 27 | 47.4% | ||||
| 2016 | 60 | 90 | 26 | 163 | 120 | 11 | 12 | 19.2% | 19 | 29.7% | ||||
| 2014 | 60 | 90 | 24 | 188 | 120 | 10 | 21 | 25.8% | 28 | 42.4% | ||||
Arkansas
Arkansas' primary filing deadline was on November 14, 2023. Candidates filed to run for U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Arkansas primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 4 | 4 | 0 | 9 | 8 | 0 | 1 | 12.5% | 1 | 25.0% | ||||
| State executives | 1 | 1 | 1 | 2 | 2 | 0 | 0 | 0.0% | 0 | N/A | ||||
| State legislature | 118 | 118 | 13 | 202 | 236 | 10 | 14 | 10.2% | 10 | 9.5% | ||||
| Totals | 123 | 123 | 14 | 213 | 246 | 10 | 15 | 10.2% | 11 | 10.1% | ||||
U.S. House
| Arkansas U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 4 | 4 | 0 | 9 | 8 | 0 | 1 | 12.5% | 1 | 25.0% | ||||
| 2022 | 4 | 4 | 0 | 12 | 8 | 0 | 3 | 37.5% | 3 | 75.0% | ||||
| 2020 | 4 | 4 | 0 | 7 | 8 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2018 | 4 | 4 | 0 | 13 | 8 | 1 | 2 | 37.5% | 2 | 50.0% | ||||
| 2016 | 4 | 4 | 0 | 6 | 8 | 0 | 1 | 12.5% | 1 | 25.0% | ||||
| 2014 | 4 | 4 | 2 | 10 | 8 | 0 | 2 | 25.0% | 0 | 0.0% | ||||
State executives
| Arkansas state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 1 | 2 | 2 | 0 | 0 | 0.0% | 0 | N/A | ||||
| 2022 | 7 | 7 | 5 | 28 | 14 | 2 | 5 | 50.0% | 1 | 100.0% | ||||
| 2018 | 7 | 7 | 2 | 15 | 14 | 1 | 2 | 21.4% | 1 | 20.0% | ||||
| 2014 | 7 | 7 | 5 | 22 | 14 | 1 | 5 | 42.9% | 0 | 0.0% | ||||
State legislature
| Arkansas state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 118 | 118 | 13 | 202 | 236 | 10 | 14 | 10.2% | 10 | 9.5% | ||||
| 2022 | 135 | 135 | 32 | 263 | 270 | 10 | 52 | 23.0% | 29 | 27.9% | ||||
| 2020 | 117 | 117 | 10 | 191 | 234 | 5 | 16 | 9.0% | 11 | 10.3% | ||||
| 2018 | 118 | 118 | 23 | 195 | 236 | 9 | 18 | 11.4% | 15 | 15.8% | ||||
| 2016 | 117 | 117 | 15 | 171 | 234 | 4 | 18 | 9.4% | 10 | 9.8% | ||||
| 2014 | 118 | 118 | 31 | 186 | 236 | 4 | 22 | 11.0% | 8 | 9.2% | ||||
California
California's primary filing deadline was on December 8, 2023. Candidates filed to run for U.S. Senate, U.S. House, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| California primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| U.S. Senate | 1 | 1 | 1 | 27 | 1 | 1 | 100.0% | 0 | N/A | |||||
| U.S. House | 52 | 52 | 7 | 241 | 52 | 42 | 80.8% | 36 | 80.0% | |||||
| State legislature | 100 | 100 | 34 | 332 | 100 | 58 | 58.0% | 27 | 40.9% | |||||
| Totals | 153 | 153 | 42 | 600 | 153 | 101 | 66.0% | 63 | 56.8% | |||||
U.S. Senate
| California U.S. Senate primary competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| 2024 | 1 | 1 | 1 | 27 | 1 | 1 | 100.0% | 0 | N/A | |||||
| 2022 | 1 | 1 | 0 | 27 | 1 | 1 | 100.0% | 1 | 100.0% | |||||
| 2018 | 1 | 1 | 0 | 32 | 1 | 1 | 100.0% | 1 | 100.0% | |||||
| 2016 | 1 | 1 | 1 | 34 | 1 | 1 | 100.0% | 0 | N/A | |||||
U.S. House
| California U.S. House primary competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| 2024 | 52 | 52 | 7 | 241 | 52 | 42 | 80.8% | 36 | 80.0% | |||||
| 2022 | 52 | 52 | 5 | 272 | 52 | 52 | 100.0% | 47 | 100.0% | |||||
| 2020 | 53 | 53 | 4 | 262 | 53 | 47 | 88.7% | 32 | 64.0% | |||||
| 2018 | 53 | 53 | 2 | 244 | 53 | 41 | 77.4% | 39 | 76.5% | |||||
| 2016 | 53 | 53 | 4 | 202 | 53 | 40 | 75.5% | 36 | 73.5% | |||||
| 2014 | 53 | 53 | 6 | 209 | 53 | 38 | 71.7% | 32 | 68.1% | |||||
State legislature
| California state legislative primary competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| 2024 | 100 | 100 | 34 | 332 | 100 | 58 | 58.0% | 27 | 40.9% | |||||
| 2022 | 100 | 100 | 34 | 317 | 100 | 60 | 60.0% | 32 | 46.4% | |||||
| 2020 | 100 | 100 | 14 | 304 | 100 | 51 | 51.0% | 37 | 43.0% | |||||
| 2018 | 100 | 100 | 14 | 307 | 100 | 50 | 50.0% | 37 | 43.0% | |||||
| 2016 | 100 | 100 | 26 | 300 | 100 | 49 | 49.0% | 25 | 33.8% | |||||
| 2014 | 100 | 100 | 33 | 314 | 100 | 54 | 54.0% | 23 | 34.3% | |||||
Colorado
Colorado's primary filing deadline was on March 19, 2024. Candidates filed to run for U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Colorado primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 8 | 8 | 2 | 31 | 16 | 2 | 4 | 37.5% | 1 | 16.7% | ||||
| State executives | 7 | 7 | 5 | 16 | 14 | 2 | 1 | 21.4% | 0 | 0.0% | ||||
| State legislature | 83 | 83 | 24 | 181 | 166 | 11 | 14 | 15.1% | 7 | 11.9% | ||||
| Totals | 98 | 98 | 31 | 228 | 196 | 15 | 19 | 17.3% | 8 | 12.1% | ||||
U.S. House
| Colorado U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 8 | 8 | 2 | 31 | 16 | 2 | 4 | 37.5% | 1 | 16.7% | ||||
| 2022 | 8 | 8 | 2 | 30 | 16 | 3 | 5 | 50.0% | 4 | 66.7% | ||||
| 2020 | 7 | 7 | 0 | 16 | 14 | 1 | 1 | 14.3% | 1 | 14.3% | ||||
| 2018 | 7 | 7 | 1 | 24 | 14 | 5 | 1 | 42.9% | 2 | 33.3% | ||||
| 2016 | 7 | 7 | 0 | 18 | 14 | 2 | 2 | 28.6% | 3 | 42.9% | ||||
| 2014 | 7 | 7 | 1 | 19 | 14 | 0 | 3 | 21.4% | 2 | 33.3% | ||||
State executives
| Colorado state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 7 | 7 | 5 | 16 | 14 | 2 | 1 | 21.4% | 0 | 0.0% | ||||
| 2022 | 12 | 12 | 5 | 31 | 24 | 2 | 4 | 25.0% | 0 | 0.0% | ||||
| 2020 | 6 | 6 | 5 | 15 | 12 | 2 | 1 | 25.0% | 0 | 0.0% | ||||
| 2018 | 9 | 9 | 6 | 28 | 18 | 3 | 2 | 27.8% | 0 | 0.0% | ||||
| 2014 | 5 | 5 | 2 | 11 | 10 | 0 | 1 | 10.0% | 0 | 0.0% | ||||
State legislature
| Colorado state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 83 | 83 | 24 | 181 | 166 | 11 | 14 | 15.1% | 7 | 11.9% | ||||
| 2022 | 82 | 82 | 32 | 182 | 164 | 7 | 16 | 14.0% | 7 | 14.0% | ||||
| 2020 | 83 | 83 | 20 | 176 | 166 | 8 | 11 | 11.4% | 5 | 7.9% | ||||
| 2018 | 82 | 82 | 25 | 182 | 164 | 12 | 8 | 12.2% | 5 | 8.8% | ||||
| 2016 | 83 | 83 | 24 | 175 | 166 | 12 | 12 | 14.5% | 5 | 8.5% | ||||
| 2014 | 82 | 82 | 23 | 159 | 164 | 3 | 9 | 7.3% | 2 | 3.4% | ||||
Connecticut
Connecticut's primary filing deadline was on June 11, 2024. Candidates filed to run for U.S. Senate, U.S. House, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Connecticut primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 2 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| U.S. House | 5 | 5 | 0 | 11 | 10 | 0 | 1 | 10.0% | 0 | 0.0% | ||||
| State legislature | 187 | 187 | 11 | 348 | 374 | 15 | 2 | 4.5% | 9 | 5.1% | ||||
| Totals | 193 | 193 | 11 | 361 | 386 | 15 | 4 | 4.9% | 9 | 4.9% | ||||
U.S. Senate
| Connecticut U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 2 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2018 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
U.S. House
| Connecticut U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 5 | 5 | 0 | 11 | 10 | 0 | 1 | 10.0% | 0 | 0.0% | ||||
| 2022 | 5 | 5 | 0 | 11 | 10 | 0 | 1 | 10.0% | 0 | 0.0% | ||||
| 2020 | 5 | 5 | 0 | 13 | 10 | 0 | 2 | 20.0% | 0 | 0.0% | ||||
| 2018 | 5 | 5 | 1 | 13 | 10 | 1 | 1 | 20.0% | 0 | 0.0% | ||||
| 2016 | 5 | 5 | 0 | 12 | 10 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2014 | 5 | 5 | 0 | 10 | 10 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
State legislature
| Connecticut state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 187 | 187 | 11 | 348 | 374 | 15 | 2 | 4.5% | 9 | 5.1% | ||||
| 2022 | 187 | 187 | 30 | 341 | 374 | 6 | 2 | 2.1% | 4 | 2.5% | ||||
| 2020 | 187 | 187 | 17 | 354 | 374 | 10 | 4 | 3.7% | 5 | 2.9% | ||||
| 2018 | 187 | 187 | 24 | 372 | 374 | 14 | 6 | 5.3% | 5 | 3.1% | ||||
| 2016 | 187 | 187 | 23 | 337 | 374 | 10 | 2 | 3.2% | 10 | 6.1% | ||||
| 2014 | 187 | 187 | 24 | 343 | 374 | 13 | 5 | 4.8% | 9 | 5.5% | ||||
Delaware
Delaware's primary filing deadline was on July 9, 2024. Candidates filed to run for the U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Delaware primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 1 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| U.S. House | 1 | 1 | 1 | 5 | 2 | 1 | 1 | 100.0% | 0 | 0.0% | ||||
| State executives | 3 | 3 | 2 | 13 | 6 | 3 | 1 | 66.7% | 1 | 100.0% | ||||
| State legislature | 51 | 51 | 5 | 87 | 102 | 10 | 2 | 11.8% | 7 | 15.2% | ||||
| Totals | 56 | 56 | 9 | 107 | 112 | 14 | 4 | 16.1% | 8 | 17.0% | ||||
U.S. Senate
| Delaware U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 1 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2020 | 1 | 1 | 0 | 4 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 5 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2014 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
U.S. House
| Delaware U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 1 | 5 | 2 | 1 | 1 | 100.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2020 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2018 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 1 | 7 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| 2014 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
State executives
| Delaware state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 3 | 3 | 2 | 13 | 6 | 3 | 1 | 66.7% | 1 | 100.0% | ||||
| 2022 | 3 | 3 | 0 | 6 | 6 | 1 | 0 | 16.7% | 1 | 33.3% | ||||
| 2020 | 3 | 3 | 0 | 11 | 6 | 2 | 1 | 50.0% | 2 | 66.7% | ||||
| 2018 | 3 | 3 | 2 | 11 | 6 | 2 | 0 | 33.3% | 0 | 0.0% | ||||
| 2016 | 3 | 3 | 2 | 14 | 6 | 2 | 2 | 66.7% | 1 | 100.0% | ||||
| 2014 | 3 | 3 | 2 | 14 | 6 | 2 | 2 | 66.7% | 1 | 100.0% | ||||
State legislature
| Delaware state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 51 | 51 | 5 | 87 | 102 | 10 | 2 | 11.8% | 7 | 15.2% | ||||
| 2022 | 62 | 62 | 7 | 108 | 124 | 11 | 3 | 11.3% | 8 | 14.5% | ||||
| 2020 | 52 | 52 | 2 | 94 | 104 | 11 | 1 | 11.5% | 7 | 14.0% | ||||
| 2018 | 51 | 51 | 14 | 112 | 102 | 13 | 4 | 16.7% | 3 | 8.1% | ||||
| 2016 | 52 | 52 | 2 | 84 | 104 | 7 | 2 | 8.7% | 6 | 12.0% | ||||
| 2014 | 51 | 51 | 2 | 91 | 102 | 8 | 3 | 10.8% | 9 | 18.4% | ||||
Florida
Florida had two separate filing deadlines: April 26, 2024, for congressional races and June 14, 2024, for state legislative races. Candidates filed to run for U.S. Senate, U.S. House, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Florida primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 7 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| U.S. House | 28 | 28 | 1 | 101 | 56 | 9 | 21 | 53.6% | 15 | 55.6% | ||||
| State legislature | 140 | 140 | 31 | 335 | 280 | 18 | 27 | 16.1% | 13 | 11.9% | ||||
| Totals | 169 | 169 | 32 | 443 | 338 | 28 | 49 | 22.8% | 29 | 21.2% | ||||
U.S. Senate
| Florida U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 7 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2022 | 1 | 1 | 0 | 5 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| 2018 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 0 | 9 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
U.S. House
| Florida U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 28 | 28 | 1 | 101 | 56 | 9 | 21 | 53.6% | 15 | 55.6% | ||||
| 2022 | 28 | 28 | 6 | 151 | 56 | 14 | 24 | 67.9% | 17 | 73.9% | ||||
| 2020 | 27 | 27 | 2 | 114 | 54 | 10 | 19 | 53.7% | 10 | 40.0% | ||||
| 2018 | 27 | 27 | 4 | 104 | 54 | 19 | 12 | 57.4% | 11 | 47.8% | ||||
| 2016 | 27 | 27 | 7 | 100 | 54 | 11 | 13 | 44.4% | 9 | 47.4% | ||||
| 2014 | 27 | 27 | 0 | 75 | 54 | 5 | 10 | 27.8% | 8 | 29.6% | ||||
State legislature
| Florida state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 140 | 140 | 31 | 335 | 280 | 18 | 27 | 16.1% | 13 | 11.9% | ||||
| 2022 | 160 | 160 | 47 | 372 | 320 | 31 | 49 | 25.0% | 32 | 28.1% | ||||
| 2020 | 140 | 140 | 40 | 361 | 280 | 37 | 34 | 25.4% | 17 | 17.0% | ||||
| 2018 | 140 | 140 | 38 | 320 | 280 | 37 | 31 | 24.3% | 19 | 18.6% | ||||
| 2016 | 160 | 160 | 62 | 371 | 320 | 42 | 32 | 23.1% | 14 | 14.3% | ||||
| 2014 | 140 | 140 | 18 | 250 | 280 | 14 | 28 | 15.0% | 21 | 17.2% | ||||
Georgia
Georgia's primary filing deadline was on March 8, 2024. Candidates filed to run for U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Georgia primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 14 | 14 | 1 | 54 | 28 | 8 | 4 | 42.9% | 3 | 23.1% | ||||
| State legislature | 236 | 236 | 17 | 450 | 472 | 38 | 30 | 14.4% | 43 | 19.5% | ||||
| Totals | 250 | 250 | 18 | 504 | 500 | 46 | 34 | 16.0% | 46 | 19.7% | ||||
U.S. House
| Georgia U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 14 | 14 | 1 | 54 | 28 | 8 | 4 | 42.9% | 3 | 23.1% | ||||
| 2022 | 14 | 14 | 2 | 82 | 28 | 8 | 9 | 60.7% | 8 | 61.5% | ||||
| 2020 | 14 | 14 | 3 | 77 | 28 | 8 | 8 | 57.1% | 5 | 45.5% | ||||
| 2018 | 14 | 14 | 0 | 48 | 28 | 8 | 5 | 46.4% | 5 | 35.7% | ||||
| 2016 | 14 | 14 | 1 | 44 | 28 | 2 | 7 | 32.1% | 5 | 38.5% | ||||
| 2014 | 14 | 14 | 3 | 49 | 28 | 3 | 8 | 39.3% | 5 | 45.5% | ||||
State executives
| Georgia state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | 0 | — | ||||
| 2022 | 10 | 10 | 3 | 65 | 20 | 9 | 7 | 80.0% | 5 | 100.0% | ||||
| 2020 | 2 | 2 | 0 | 5 | 4 | 1 | 0 | 25.0% | 0 | 0.0% | ||||
| 2018 | 10 | 10 | 4 | 44 | 20 | 8 | 6 | 70.0% | 2 | 33.3% | ||||
| 2016 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| 2014 | 10 | 10 | 1 | 39 | 20 | 3 | 3 | 30.0% | 2 | 22.2% | ||||
State legislature
| Georgia state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 236 | 236 | 17 | 450 | 472 | 38 | 30 | 14.4% | 43 | 19.5% | ||||
| 2022 | 236 | 236 | 51 | 495 | 472 | 51 | 53 | 22.0% | 63 | 33.5% | ||||
| 2020 | 236 | 236 | 26 | 475 | 472 | 49 | 31 | 16.9% | 42 | 20.0% | ||||
| 2018 | 236 | 236 | 20 | 438 | 472 | 44 | 44 | 18.6% | 53 | 24.5% | ||||
| 2016 | 236 | 236 | 21 | 389 | 472 | 30 | 46 | 16.1% | 49 | 22.9% | ||||
| 2014 | 236 | 236 | 17 | 364 | 472 | 23 | 39 | 13.1% | 47 | 21.5% | ||||
Hawaii
Hawaii's primary filing deadline was on June 4, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Hawaii primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| U.S. Senate | 1 | 1 | 0 | 9 | 2 | 1 | 1 | N/A | 100.0% | 1 | 100.0% | |||
| U.S. House | 2 | 2 | 0 | 5 | 4 | 1 | 0 | N/A | 25.0% | 1 | 50.0% | |||
| State executives | 4 | 4 | 1 | 17 | 4 | 0 | 0 | 3 | 75.0% | 2 | 66.7% | |||
| State legislature | 63 | 63 | 5 | 146 | 126 | 26 | 5 | N/A | 24.6% | 19 | 32.8% | |||
| Totals | 70 | 70 | 6 | 177 | 136 | 28 | 6 | 3 | 27.2% | 23 | 35.9% | |||
U.S. Senate
| Hawaii U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 9 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2022 | 1 | 1 | 0 | 7 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 9 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 0 | 9 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
U.S. House
| Hawaii U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 2 | 2 | 0 | 5 | 4 | 1 | 0 | 25.0% | 1 | 50.0% | ||||
| 2022 | 2 | 2 | 1 | 13 | 4 | 2 | 2 | 100.0% | 1 | 100.0% | ||||
| 2020 | 2 | 2 | 1 | 19 | 4 | 1 | 2 | 75.0% | 0 | 0.0% | ||||
| 2018 | 2 | 2 | 1 | 13 | 4 | 2 | 1 | 75.0% | 1 | 100.0% | ||||
| 2016 | 2 | 2 | 1 | 12 | 4 | 2 | 1 | 75.0% | 1 | 100.0% | ||||
| 2014 | 2 | 2 | 1 | 12 | 4 | 1 | 2 | 75.0% | 0 | 0.0% | ||||
State executives
| Hawaii state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| 2024 | 4 | 4 | 1 | 17 | 4 | 0 | 0 | 3 | 75.0% | 3 | 100.0% | |||
| 2022 | 4 | 6 | 1 | 26 | 10 | 2 | 2 | 2 | 60.0% | 4 | 66.7% | |||
| 2020 | 4 | 4 | 1 | 24 | 4 | N/A | N/A | 4 | 100.0% | 3 | 100.0% | |||
| 2018 | 5 | 5 | 2 | 41 | 7 | 2 | 2 | 2 | 85.7% | 4 | 80.0% | |||
| 2016 | N/A[13] | |||||||||||||
| 2014 | 2 | 2 | 0 | 13 | 4 | 2 | 2 | N/A | 100.0% | 2 | 100.0% | |||
State legislature
| Hawaii state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 63 | 63 | 5 | 146 | 126 | 26 | 5 | 24.6% | 19 | 32.8% | ||||
| 2022 | 76 | 76 | 15 | 205 | 152 | 36 | 15 | 33.6% | 25 | 39.7% | ||||
| 2020 | 64 | 64 | 8 | 136 | 128 | 29 | 2 | 24.2% | 20 | 35.7% | ||||
| 2018 | 63 | 63 | 9 | 136 | 126 | 33 | 4 | 29.4% | 23 | 42.6% | ||||
| 2016 | 64 | 64 | 3 | 137 | 128 | 29 | 5 | 26.6% | 24 | 39.3% | ||||
| 2014 | 63 | 63 | 5 | 142 | 126 | 23 | 6 | 23.0% | 20 | 34.5% | ||||
Idaho
Idaho's primary filing deadline was on March 15, 2024. Candidates filed to run for U.S. House and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Idaho primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 2 | 2 | 0 | 6 | 4 | 0 | 1 | 25.0% | 1 | 50.0% | ||||
| State legislature | 105 | 105 | 6 | 245 | 210 | 4 | 52 | 26.7% | 49 | 49.0% | ||||
| Totals | 107 | 107 | 6 | 251 | 214 | 4 | 53 | 26.6% | 50 | 49.0% | ||||
U.S. House
| Idaho U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 2 | 2 | 0 | 6 | 4 | 0 | 1 | 25.0% | 1 | 50.0% | ||||
| 2022 | 2 | 2 | 0 | 8 | 4 | 0 | 1 | 25.0% | 1 | 50.0% | ||||
| 2020 | 2 | 2 | 0 | 7 | 4 | 1 | 2 | 75.0% | 2 | 100.0% | ||||
| 2018 | 2 | 2 | 1 | 13 | 4 | 2 | 1 | 75.0% | 0 | 0.0% | ||||
| 2016 | 2 | 2 | 0 | 9 | 4 | 1 | 2 | 75.0% | 2 | 100.0% | ||||
| 2014 | 2 | 2 | 0 | 10 | 4 | 1 | 2 | 75.0% | 2 | 100.0% | ||||
State legislature
| Idaho state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 105 | 105 | 6 | 245 | 210 | 4 | 52 | 26.7% | 49 | 49.0% | ||||
| 2022 | 105 | 105 | 36 | 252 | 210 | 0 | 71 | 33.8% | 45 | 60.8% | ||||
| 2020 | 105 | 105 | 18 | 209 | 210 | 3 | 42 | 21.4% | 28 | 32.2% | ||||
| 2018 | 105 | 105 | 16 | 228 | 210 | 7 | 44 | 24.3% | 31 | 34.8% | ||||
| 2016 | 105 | 105 | 9 | 209 | 210 | 3 | 35 | 18.1% | 31 | 32.3% | ||||
| 2014 | 105 | 105 | 11 | 206 | 210 | 6 | 34 | 19.0% | 30 | 31.9% | ||||
Illinois
Illinois' primary filing deadline was on December 4, 2023. Candidates filed to run for U.S. House and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Illinois primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 17 | 17 | 0 | 46 | 34 | 5 | 6 | 32.4% | 5 | 29.4% | ||||
| State legislature | 138 | 138 | 6 | 232 | 276 | 17 | 11 | 10.1% | 19 | 14.4% | ||||
| Totals | 155 | 155 | 6 | 278 | 310 | 22 | 17 | 12.6% | 24 | 16.1% | ||||
U.S. House
| Illinois U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 17 | 17 | 0 | 46 | 34 | 5 | 6 | 32.4% | 5 | 29.4% | ||||
| 2022 | 17 | 17 | 4 | 95 | 34 | 8 | 11 | 55.9% | 7 | 46.7% | ||||
| 2020 | 18 | 18 | 1 | 73 | 36 | 13 | 8 | 58.3% | 10 | 58.8% | ||||
| 2018 | 18 | 18 | 1 | 79 | 36 | 12 | 8 | 55.6% | 7 | 41.2% | ||||
| 2016 | 18 | 18 | 1 | 49 | 36 | 8 | 6 | 38.9% | 7 | 41.2% | ||||
| 2014 | 18 | 18 | 0 | 50 | 36 | 4 | 5 | 25.0% | 3 | 16.7% | ||||
State legislature
| Illinois state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 138 | 138 | 6 | 232 | 276 | 17 | 11 | 10.1% | 19 | 14.4% | ||||
| 2022 | 177 | 177 | 22 | 314 | 354 | 25 | 26 | 14.4% | 25 | 16.1% | ||||
| 2020 | 138 | 138 | 15 | 252 | 276 | 28 | 10 | 13.8% | 22 | 18.0% | ||||
| 2018 | 157 | 157 | 28 | 306 | 314 | 23 | 22 | 14.3% | 17 | 13.2% | ||||
| 2016 | 158 | 158 | 14 | 252 | 316 | 15 | 15 | 9.5% | 17 | 11.8% | ||||
| 2014 | 137 | 137 | 12 | 228 | 274 | 13 | 16 | 10.6% | 14 | 11.2% | ||||
Indiana
Indiana's primary filing deadline was on February 9, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Indiana primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 1 | 3 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| U.S. House | 9 | 9 | 3 | 63 | 18 | 6 | 8 | 77.8% | 4 | 66.7% | ||||
| State executive | 3 | 3 | 2 | 7 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| State legislature | 125 | 125 | 9 | 230 | 250 | 8 | 33 | 16.4% | 29 | 25.0% | ||||
| Totals | 138 | 138 | 15 | 303 | 272 | 15 | 42 | 21.0% | 33 | 26.8% | ||||
U.S. Senate
| Indiana U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 1 | 3 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2018 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 1 | 3 | 2 | 0 | 1 | 50.0% | N/A | N/A | ||||
U.S. House
| Indiana U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 9 | 9 | 3 | 63 | 18 | 6 | 8 | 77.8% | 4 | 66.7% | ||||
| 2022 | 9 | 9 | 1 | 49 | 18 | 8 | 4 | 66.7% | 3 | 37.5% | ||||
| 2020 | 9 | 9 | 2 | 78 | 18 | 9 | 6 | 83.3% | 4 | 57.1% | ||||
| 2018 | 9 | 9 | 2 | 71 | 18 | 8 | 7 | 83.3% | 4 | 57.1% | ||||
| 2016 | 9 | 9 | 2 | 51 | 18 | 8 | 8 | 88.9% | 7 | 100.0% | ||||
| 2014 | 9 | 9 | 0 | 49 | 18 | 7 | 6 | 72.2% | 6 | 66.7% | ||||
State executives
| Indiana state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 3 | 3 | 2 | 7 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2022 | N/A[14] | |||||||||||||
| 2020 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2018 | N/A[15] | |||||||||||||
| 2016 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2014 | N/A[16] | |||||||||||||
State legislature
| Indiana state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 125 | 125 | 9 | 230 | 250 | 8 | 33 | 16.4% | 29 | 25.0% | ||||
| 2022 | 125 | 125 | 14 | 256 | 250 | 9 | 40 | 19.6% | 30 | 26.3% | ||||
| 2020 | 125 | 125 | 10 | 252 | 250 | 20 | 24 | 17.6% | 23 | 20.0% | ||||
| 2018 | 125 | 125 | 14 | 264 | 250 | 18 | 26 | 17.6% | 23 | 20.7% | ||||
| 2016 | 125 | 125 | 17 | 242 | 250 | 12 | 26 | 15.2% | 17 | 15.7% | ||||
| 2014 | 125 | 125 | 8 | 215 | 250 | 2 | 23 | 10.0% | 11 | 9.4% | ||||
Iowa
Iowa's primary filing deadline was on March 15, 2024. Candidates filed to run for U.S. House and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Iowa primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 4 | 4 | 0 | 11 | 8 | 1 | 2 | 37.5% | 2 | 50.0% | ||||
| State legislature | 125 | 125 | 16 | 216 | 250 | 5 | 17 | 8.8% | 7 | 6.4% | ||||
| Totals | 129 | 129 | 16 | 227 | 258 | 6 | 19 | 9.7% | 9 | 8.0% | ||||
U.S. House
| Iowa U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 4 | 4 | 0 | 11 | 8 | 1 | 2 | 37.5% | 2 | 50.0% | ||||
| 2022 | 4 | 4 | 0 | 10 | 8 | 0 | 1 | 12.5% | 0 | 0.0% | ||||
| 2020 | 4 | 4 | 1 | 18 | 8 | 0 | 4 | 50.0% | 1 | 33.3% | ||||
| 2018 | 4 | 4 | 0 | 16 | 8 | 3 | 1 | 50.0% | 1 | 25.0% | ||||
| 2016 | 4 | 4 | 0 | 13 | 8 | 2 | 2 | 50.0% | 2 | 50.0% | ||||
| 2014 | 4 | 4 | 2 | 21 | 8 | 1 | 3 | 50.0% | 0 | 0.0% | ||||
State legislature
| Iowa state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 125 | 125 | 16 | 216 | 250 | 5 | 17 | 8.8% | 7 | 6.4% | ||||
| 2022 | 134 | 134 | 46 | 254 | 268 | 13 | 31 | 16.4% | 14 | 15.1% | ||||
| 2020 | 125 | 125 | 17 | 242 | 250 | 12 | 16 | 11.2% | 6 | 5.6% | ||||
| 2018 | 125 | 125 | 22 | 256 | 250 | 15 | 17 | 12.8% | 5 | 4.9% | ||||
| 2016 | 125 | 125 | 13 | 230 | 250 | 14 | 15 | 11.6% | 9 | 8.0% | ||||
| 2014 | 125 | 125 | 15 | 212 | 250 | 14 | 15 | 11.6% | 8 | 7.3% | ||||
Kansas
Kansas' primary filing deadline was on June 3, 2024. Candidates filed to run for U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Kansas primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 4 | 4 | 1 | 15 | 8 | 1 | 3 | 50.0% | 1 | 33.0% | ||||
| State executives | 5 | 5 | 3 | 13 | 10 | 0 | 2 | 20.0% | 0 | 0.0% | ||||
| State legislature | 165 | 165 | 31 | 318 | 330 | 11 | 30 | 12.4% | 17 | 12.7% | ||||
| Totals | 174 | 174 | 35 | 346 | 348 | 12 | 35 | 13.5% | 18 | 12.9% | ||||
U.S. House
| Kansas U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 4 | 4 | 1 | 15 | 8 | 1 | 3 | 50.0% | 1 | 33.0% | ||||
| 2022 | 4 | 4 | 0 | 9 | 8 | 0 | 1 | 12.5% | 0 | 0.0% | ||||
| 2020 | 4 | 4 | 1 | 19 | 8 | 2 | 3 | 62.5% | 1 | 33.3% | ||||
| 2018 | 4 | 4 | 1 | 24 | 8 | 2 | 4 | 75.0% | 3 | 100.0% | ||||
| 2016 | 4 | 4 | 0 | 12 | 8 | 2 | 2 | 50.0% | 2 | 50.0% | ||||
| 2014 | 4 | 4 | 0 | 13 | 8 | 2 | 3 | 62.5% | 3 | 75.0% | ||||
State executives
| Kansas state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 5 | 5 | 3 | 13 | 10 | 0 | 2 | 20.0% | 0 | 0.0% | ||||
| 2022 | 10 | 10 | 2 | 26 | 20 | 1 | 7 | 40.0% | 5 | 55.6% | ||||
| 2020 | 5 | 5 | 1 | 9 | 10 | 0 | 2 | 20.0% | 0 | 0.0% | ||||
| 2018 | 11 | 11 | 5 | 47 | 22 | 2 | 6 | 36.4% | 2 | 33.3% | ||||
| 2014 | 6 | 6 | 1 | 19 | 12 | 4 | 0 | 33.3% | 3 | 60.0% | ||||
State legislature
| Kansas state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 165 | 165 | 31 | 318 | 330 | 11 | 30 | 12.4% | 17 | 12.7% | ||||
| 2022 | 125 | 125 | 24 | 227 | 250 | 12 | 25 | 14.8% | 16 | 15.7% | ||||
| 2020 | 165 | 165 | 23 | 334 | 330 | 14 | 40 | 16.4% | 31 | 21.8% | ||||
| 2018 | 125 | 125 | 13 | 232 | 250 | 11 | 31 | 16.8% | 26 | 23.2% | ||||
| 2016 | 165 | 165 | 33 | 353 | 330 | 13 | 55 | 20.6% | 39 | 29.5% | ||||
| 2014 | 125 | 125 | 13 | 238 | 250 | 5 | 30 | 14.0% | 21 | 18.8% | ||||
Kentucky
Kentucky's primary filing deadline was on January 5, 2024. Candidates filed to run for U.S. House and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Kentucky primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 6 | 6 | 0 | 23 | 12 | 3 | 3 | 50.0% | 3 | 50.0% | ||||
| State legislature | 119 | 119 | 17[17] | 223 | 238 | 16 | 26 | 17.6% | 24 | 23.3% | ||||
| Totals | 125 | 125 | 17 | 246 | 250 | 19 | 29 | 19.2% | 27 | 24.8% | ||||
U.S. House
| Kentucky U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 6 | 6 | 0 | 23 | 12 | 3 | 3 | 50.0% | 3 | 50.0% | ||||
| 2022 | 6 | 6 | 1 | 31 | 12 | 3 | 5 | 66.7% | 4 | 80.0% | ||||
| 2020 | 6 | 6 | 0 | 21 | 12 | 2 | 5 | 58.3% | 4 | 66.7% | ||||
| 2018 | 6 | 6 | 0 | 28 | 12 | 5 | 3 | 66.7% | 2 | 33.3% | ||||
| 2016 | 6 | 6 | 1 | 18 | 12 | 1 | 4 | 41.7% | 2 | 40.0% | ||||
| 2014 | 6 | 6 | 0 | 16 | 12 | 4 | 0 | 33.3% | 1 | 16.7% | ||||
State legislature
| Kentucky state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 119 | 119 | 17[18] | 223 | 238 | 16 | 26 | 17.6% | 24 | 23.3% | ||||
| 2022 | 119 | 119 | 21 | 250 | 238 | 15 | 42 | 23.9% | 31 | 31.0% | ||||
| 2020 | 119 | 119 | 17 | 240 | 238 | 13 | 23 | 15.1% | 13 | 12.7% | ||||
| 2018 | 119 | 119 | 21 | 291 | 238 | 25 | 26 | 21.4% | 19 | 19.4% | ||||
| 2016 | 119 | 119 | 10 | 240 | 238 | 15 | 27 | 17.6% | 16 | 14.7% | ||||
| 2014 | 119 | 119 | 11 | 215 | 238 | 11 | 18 | 12.2% | 15 | 13.9% | ||||
Louisiana
Louisiana's primary filing deadline was on July 19, 2024. Candidates filed to run for U.S. House and state executive offices. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Louisiana primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries[19] | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| U.S. House | 6 | 6 | 1 | 24 | 6 | 5 | 83.3% | 4 | 80.0% | |||||
| State executives | 1 | 1 | 1 | 3 | 1 | 1 | 100.0% | 0 | N/A | |||||
| Totals | 7 | 7 | 2 | 27 | 7 | 6 | 85.7% | 4 | 80.0% | |||||
U.S. House
| Louisiana U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries[19] | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| 2024 | 6 | 6 | 1 | 24 | 6 | 5 | 83.3% | 4 | 80.0% | |||||
| 2022 | 6 | 6 | 0 | 22 | 6 | 4 | 66.7% | 4 | 66.7% | |||||
| 2020 | 6 | 6 | 1 | 30 | 6 | 6 | 100.0% | 5 | 100.0% | |||||
| 2018 | 6 | 6 | 0 | 28 | 6 | 6 | 100.0% | 6 | 100.0% | |||||
| 2016 | 6 | 6 | 2 | 39 | 6 | 5 | 83.3% | 3 | 75.0% | |||||
| 2014 | 6 | 6 | 1 | 35 | 6 | 5 | 83.3% | 3 | 60.0% | |||||
State executives
| Louisiana state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries[19] | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| 2024 | 1 | 1 | 1 | 3 | 1 | 1 | 100.0% | 0 | N/A | |||||
| 2022 | 2 | 2 | 0 | 8 | 2 | 2 | 100.0% | 2 | 100.0% | |||||
| 2020 | 2 | 2 | 0 | 9 | 2 | 1 | 50.0% | 1 | 50.0% | |||||
| 2018 | 2 | 2 | 0 | 10 | 2 | 1 | 50.0% | 1 | 50.0% | |||||
| 2016 | 2 | 2 | 1 | 4 | 2 | 1 | 50.0% | 0 | 0.0% | |||||
| 2014 | 2 | 2 | 0 | 5 | 2 | 1 | 50.0% | 1 | 50.0% | |||||
Maine
Maine's primary filing deadline was on March 15, 2024. Candidates filed to run for U.S. Senate, U.S. House, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Maine primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| U.S. House | 2 | 2 | 0 | 6 | 4 | 0 | 2 | 50.0% | 0 | 0.0% | ||||
| State legislature | 186 | 186 | 39 | 370 | 372 | 9 | 9 | 4.8% | 6 | 4.1% | ||||
| Totals | 189 | 189 | 39 | 378 | 378 | 9 | 11 | 5.3% | 6 | 4.0% | ||||
U.S. Senate
| Maine U.S. House primary competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2020 | 1 | 1 | 0 | 4 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| 2018 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2014 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
U.S. House
| Maine U.S. House primary competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 2 | 2 | 0 | 6 | 4 | 0 | 2 | 50.0% | 0 | 0.0% | ||||
| 2022 | 2 | 2 | 0 | 5 | 4 | 0 | 1 | 25.0% | 0 | 0.0% | ||||
| 2020 | 2 | 2 | 0 | 6 | 4 | 0 | 1 | 25.0% | 0 | 0.0% | ||||
| 2018 | 2 | 2 | 0 | 6 | 4 | 1 | 0 | 25.0% | 0 | 0.0% | ||||
| 2016 | 2 | 2 | 0 | 5 | 4 | 0 | 1 | 25.0% | 0 | 0.0% | ||||
| 2014 | 2 | 2 | 1 | 6 | 4 | 1 | 1 | 50.0% | 0 | 0.0% | ||||
State legislature
| Maine state legislative primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 186 | 186 | 39 | 370 | 372 | 9 | 9 | 4.8% | 6 | 4.1% | ||||
| 2022 | 186 | 186 | 70 | 383 | 372 | 12 | 20 | 8.6% | 3 | 2.6% | ||||
| 2020 | 186 | 186 | 38 | 385 | 372 | 25 | 9 | 9.1% | 7 | 4.7% | ||||
| 2018 | 186 | 186 | 56 | 388 | 372 | 20 | 8 | 7.5% | 2 | 1.5% | ||||
| 2016 | 186 | 186 | 37 | 399 | 372 | 17 | 13 | 8.1% | 4 | 2.7% | ||||
| 2014 | 186 | 186 | 51 | 392 | 372 | 13 | 13 | 7.0% | 3 | 2.2% | ||||
Maryland
Maryland's primary filing deadline was on February 9, 2024. Candidates filed to run for U.S. Senate and U.S. House. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Maryland primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 1 | 17 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| U.S. House | 8 | 8 | 3 | 87 | 16 | 8 | 6 | 87.5% | 5 | 100.0% | ||||
| Totals | 9 | 9 | 4 | 104 | 18 | 9 | 6 | 83.3% | 5 | 100.0% | ||||
U.S. Senate
| Maryland U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 1 | 17 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 0 | 12 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 19 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2016 | 1 | 1 | 1 | 24 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
U.S. House
| Maryland U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 8 | 8 | 3 | 87 | 16 | 8 | 6 | 87.5% | 5 | 100.0% | ||||
| 2022 | 8 | 8 | 1 | 65 | 16 | 8 | 7 | 93.8% | 6 | 85.7% | ||||
| 2020 | 8 | 8 | 0 | 79 | 16 | 8 | 8 | 100.0% | 8 | 100.0% | ||||
| 2018 | 8 | 8 | 1 | 55 | 16 | 7 | 7 | 87.5% | 6 | 85.7% | ||||
| 2016 | 8 | 8 | 2 | 60 | 16 | 7 | 8 | 93.8% | 5 | 83.3% | ||||
| 2014 | 8 | 8 | 0 | 35 | 16 | 6 | 6 | 75.0% | 6 | 75.0% | ||||
Massachusetts
Massachusetts primary filing deadline was on May 7, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Massachusetts primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| U.S. House | 9 | 9 | 0 | 13 | 18 | 0 | 1 | 5.6% | 0 | 0.0% | ||||
| State executives | 8 | 8 | 2 | 17 | 16 | 3 | 0 | 18.8% | 2 | 33.3% | ||||
| State legislature | 200 | 200 | 19 | 285 | 400 | 27 | 6 | 8.3% | 18 | 9.9% | ||||
| Totals | 218 | 218 | 21 | 319 | 436 | 30 | 8 | 8.7% | 20 | 10.2% | ||||
U.S. Senate
| Massachusetts U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2020 | 1 | 1 | 0 | 4 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2014 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
U.S. House
| Massachusetts U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 9 | 9 | 0 | 13 | 18 | 0 | 1 | 5.6% | 0 | 0.0% | ||||
| 2022 | 9 | 9 | 0 | 19 | 18 | 0 | 2 | 11.1% | 0 | 0.0% | ||||
| 2020 | 9 | 9 | 1 | 27 | 18 | 4 | 1 | 27.8% | 3 | 37.5% | ||||
| 2018 | 9 | 9 | 1 | 31 | 18 | 6 | 2 | 44.4% | 5 | 62.5% | ||||
| 2016 | 9 | 9 | 0 | 14 | 18 | 0 | 1 | 5.6% | 0 | 0.0% | ||||
| 2014 | 9 | 9 | 0 | 20 | 18 | 2 | 1 | 16.7% | 2 | 22.2% | ||||
State executives
| Massachusetts state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 8 | 8 | 2 | 17 | 16 | 3 | 0 | 18.8% | 2 | 33.3% | ||||
| 2022 | 14 | 14 | 5 | 36 | 28 | 7 | 2 | 32.1% | 2 | 22.2% | ||||
| 2020 | 8 | 8 | 1 | 10 | 16 | 2 | 0 | 12.5% | 1 | 14.3% | ||||
| 2018 | 14 | 14 | 0 | 31 | 28 | 6 | 2 | 28.6% | 5 | 35.7% | ||||
| 2014 | 6 | 6 | 4 | 20 | 12 | 4 | 1 | 41.7% | 0 | 0.0% | ||||
State legislature
| Massachusetts state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 200 | 200 | 19 | 285 | 400 | 27 | 6 | 8.3% | 18 | 9.9% | ||||
| 2022 | 200 | 200 | 24 | 321 | 400 | 40 | 4 | 11.0% | 21 | 11.9% | ||||
| 2020 | 200 | 200 | 15 | 291 | 400 | 33 | 4 | 9.3% | 23 | 12.4% | ||||
| 2018 | 200 | 200 | 24 | 346 | 400 | 44 | 6 | 12.5% | 20 | 11.4% | ||||
| 2016 | 200 | 200 | 13 | 303 | 400 | 36 | 3 | 9.8% | 20 | 10.7% | ||||
| 2014 | 200 | 200 | 22 | 345 | 400 | 35 | 12 | 11.8% | 17 | 9.6% | ||||
Michigan
Michigan's primary filing deadline was on April 23, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Michigan primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 1 | 6 | 2 | 1 | 1 | 100.0% | 0 | 0.0% | ||||
| U.S. House | 13 | 13 | 2 | 43 | 26 | 6 | 6 | 46.2% | 5 | 45.5% | ||||
| State executives | N/A[20] | |||||||||||||
| State legislature | 110 | 110 | 8 | 315 | 220 | 27 | 40 | 30.5% | 35 | 34.3% | ||||
| Totals | 124 | 124 | 11 | 364 | 248 | 34 | 47 | 32.7% | 40 | 33.9% | ||||
U.S. Senate
| Michigan U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 1 | 6 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2020 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | N/A | ||||
| 2018 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 0 | N/A | ||||
| 2014 | 1 | 1 | 1 | 2 | 2 | 0 | 0 | 0.0% | 0 | N/A | ||||
U.S. House
| Michigan U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 13 | 13 | 2 | 43 | 26 | 6 | 6 | 46.2% | 5 | 45.5% | ||||
| 2022 | 13 | 13 | 2 | 53 | 26 | 4 | 9 | 50.0% | 7 | 58.3% | ||||
| 2020 | 14 | 14 | 1 | 55 | 28 | 7 | 8 | 53.6% | 4 | 33.3% | ||||
| 2018 | 14 | 14 | 2 | 51 | 28 | 9 | 1 | 35.7% | 1 | 9.1% | ||||
| 2016 | 14 | 14 | 2 | 38 | 28 | 3 | 3 | 21.4% | 3 | 25.0% | ||||
| 2014 | 14 | 14 | 4 | 48 | 28 | 5 | 8 | 46.4% | 6 | 60.0% | ||||
State executives
| Michigan state executive competitiveness, 2014-2022 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | N/A[21] | |||||||||||||
| 2022 | 1 | 1 | 0 | 6 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2020 | N/A[22] | |||||||||||||
| 2018 | 1 | 1 | 1 | 7 | 2 | 1 | 1 | 100% | 0 | N/A | ||||
| 2016 | N/A[23] | |||||||||||||
| 2014 | 4 | 4 | 0 | 8 | 8 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
State legislature
| Michigan state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 110 | 110 | 8 | 315 | 220 | 27 | 40 | 30.5% | 35 | 34.3% | ||||
| 2022 | 148 | 148 | 66 | 548 | 296 | 58 | 81 | 47.0% | 44 | 52.4% | ||||
| 2020 | 110 | 110 | 26 | 393 | 220 | 48 | 43 | 41.4% | 24 | 28.6% | ||||
| 2018 | 148 | 148 | 70 | 571 | 296 | 67 | 59 | 42.6% | 23 | 29.5% | ||||
| 2016 | 110 | 110 | 42 | 408 | 220 | 45 | 50 | 43.2% | 23 | 33.8% | ||||
| 2014 | 148 | 148 | 51 | 521 | 296 | 48 | 56 | 35.1% | 28 | 28.9% | ||||
Minnesota
Minnesota's primary filing deadline was on June 4, 2024. Candidates filed to run for U.S. Senate, U.S. House, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Minnesota primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 13 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| U.S. House | 8 | 8 | 1 | 29 | 16 | 4 | 6 | 62.5% | 6 | 85.7% | ||||
| State legislature | 134 | 134 | 20 | 284 | 268 | 7 | 15 | 8.2% | 7 | 6.1% | ||||
| Totals | 143 | 143 | 21 | 326 | 286 | 12 | 22 | 11.9% | 14 | 11.5% | ||||
U.S. Senate
| Minnesota U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 13 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2020 | 1 | 1 | 0 | 10 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 9 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2014 | 1 | 1 | 0 | 7 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
U.S. House
| Minnesota U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 8 | 8 | 1 | 29 | 16 | 4 | 6 | 62.5% | 6 | 85.7% | ||||
| 2022 | 8 | 8 | 1 | 32 | 16 | 5 | 4 | 56.3% | 4 | 50.0% | ||||
| 2020 | 8 | 8 | 0 | 37 | 16 | 4 | 6 | 62.5% | 6 | 75.0% | ||||
| 2018 | 8 | 8 | 3 | 38 | 16 | 5 | 5 | 62.5% | 2 | 40.0% | ||||
| 2016 | 8 | 8 | 1 | 30 | 16 | 3 | 5 | 50.0% | 3 | 42.9% | ||||
| 2014 | 8 | 8 | 1 | 19 | 16 | 1 | 2 | 18.8% | 0 | 0.0% | ||||
State legislature
| Minnesota state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 134 | 134 | 20 | 284 | 268 | 7 | 15 | 8.2% | 7 | 6.1% | ||||
| 2022 | 201 | 201 | 63 | 425 | 402 | 18 | 26 | 10.9% | 20 | 14.1% | ||||
| 2020 | 201 | 201 | 19 | 440 | 402 | 25 | 15 | 10.0% | 19 | 10.4% | ||||
| 2018 | 134 | 134 | 23 | 299 | 268 | 14 | 8 | 8.2% | 7 | 6.3% | ||||
| 2016 | 201 | 201 | 28 | 426 | 402 | 17 | 11 | 7.0% | 11 | 6.4% | ||||
| 2014 | 134 | 134 | 15 | 275 | 268 | 6 | 9 | 5.6% | 5 | 4.2% | ||||
Mississippi
Mississippi's primary filing deadline was on January 12, 2024. Candidates filed to run for U.S. Senate and U.S. House. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Mississippi primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| U.S. House | 4 | 4 | 0 | 12 | 8 | 1 | 2 | 37.5% | 1 | 25.0% | ||||
| Totals | 5 | 5 | 0 | 16 | 10 | 1 | 3 | 40.0% | 2 | 40.0% | ||||
U.S. Senate
| Mississippi U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| 2020 | 1 | 1 | 0 | 4 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| 2018 | 1 | 1 | 0 | 8 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2014 | 1 | 1 | 0 | 7 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
U.S. House
| Mississippi U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 4 | 4 | 0 | 12 | 8 | 1 | 2 | 37.5% | 1 | 25.0% | ||||
| 2022 | 4 | 4 | 0 | 23 | 8 | 3 | 4 | 87.5% | 4 | 100.0% | ||||
| 2020 | 4 | 4 | 0 | 15 | 8 | 2 | 3 | 62.5% | 3 | 75.0% | ||||
| 2018 | 4 | 4 | 1 | 14 | 8 | 1 | 2 | 37.5% | 1 | 33.3% | ||||
| 2016 | 4 | 4 | 0 | 11 | 8 | 1 | 2 | 37.5% | 2 | 50.0% | ||||
| 2014 | 4 | 4 | 0 | 17 | 8 | 4 | 2 | 75.0% | 3 | 75.0% | ||||
Missouri
Missouri's primary filing deadline was on March 26, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Missouri primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 5 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| U.S. House | 8 | 8 | 1 | 43 | 16 | 6 | 6 | 75.0% | 5 | 71.4% | ||||
| State executives | 5 | 5 | 3 | 43 | 10 | 3 | 5 | 80.0% | 2 | 100.0% | ||||
| State legislature | 180 | 180 | 57 | 394 | 360 | 19 | 48 | 18.6% | 26 | 21.1% | ||||
| Totals | 194 | 194 | 61 | 485 | 388 | 29 | 59 | 22.7% | 33 | 24.8% | ||||
U.S. Senate
| Missouri U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 5 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 1 | 32 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2018 | 1 | 1 | 0 | 18 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2016 | 1 | 1 | 0 | 8 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
U.S. House
| Missouri U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 8 | 8 | 1 | 43 | 16 | 6 | 6 | 75.0% | 5 | 71.4% | ||||
| 2022 | 8 | 8 | 2 | 57 | 16 | 6 | 8 | 87.5% | 6 | 100.0% | ||||
| 2020 | 8 | 8 | 0 | 40 | 16 | 4 | 6 | 62.5% | 6 | 75.0% | ||||
| 2018 | 8 | 8 | 0 | 39 | 16 | 5 | 6 | 68.8% | 5 | 62.5% | ||||
| 2016 | 8 | 8 | 0 | 45 | 16 | 5 | 8 | 81.3% | 8 | 100.0% | ||||
| 2014 | 8 | 8 | 0 | 36 | 16 | 4 | 6 | 62.5% | 5 | 62.5% | ||||
State executives
| Missouri state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 5 | 5 | 3 | 43 | 10 | 3 | 5 | 80.0% | 2 | 100.0% | ||||
| 2022 | 1 | 1 | 1 | 3 | 2 | 0 | 1 | 50.0% | 0 | N/A | ||||
| 2020 | 5 | 5 | 0 | 22 | 10 | 3 | 2 | 50.0% | 2 | 40.0% | ||||
| 2018 | 1 | 1 | 0 | 5 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 5 | 5 | 5 | 27 | 10 | 5 | 4 | 90.0% | 0 | N/A | ||||
| 2014 | 1 | 1 | 0 | 1 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
State legislature
| Missouri state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 180 | 180 | 57 | 394 | 360 | 19 | 48 | 18.6% | 26 | 21.1% | ||||
| 2022 | 180 | 180 | 49 | 362 | 360 | 15 | 54 | 19.2% | 35 | 26.5% | ||||
| 2020 | 180 | 180 | 57 | 373 | 360 | 22 | 42 | 17.8% | 17 | 13.8% | ||||
| 2018 | 180 | 180 | 63 | 436 | 360 | 29 | 49 | 21.7% | 19 | 16.2% | ||||
| 2016 | 180 | 180 | 38 | 338 | 360 | 24 | 33 | 15.8% | 21 | 14.8% | ||||
| 2014 | 180 | 180 | 33 | 333 | 360 | 16 | 33 | 13.6% | 22 | 15.0% | ||||
Montana
Montana's primary filing deadline was on March 11, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Montana primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 5 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| U.S. House | 2 | 2 | 1 | 16 | 4 | 1 | 2 | 75.0% | 1 | 100.0% | ||||
| State executives | 9 | 9 | 4 | 27 | 18 | 2 | 6 | 44.4% | 3 | 60.0% | ||||
| State legislature | 125 | 125 | 52 | 301 | 250 | 15 | 44 | 23.6% | 24 | 32.0% | ||||
| Totals | 137 | 137 | 57 | 349 | 274 | 19 | 53 | 26.3% | 29 | 35.4% | ||||
U.S. Senate
| Montana U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 5 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2020 | 1 | 1 | 0 | 6 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 5 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2014 | 1 | 1 | 0 | 6 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
U.S. House
| Montana U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 2 | 2 | 1 | 16 | 4 | 1 | 2 | 75.0% | 1 | 100.0% | ||||
| 2022 | 2 | 2 | 1 | 15 | 4 | 2 | 2 | 100.0% | 1 | 100.0% | ||||
| 2020 | 1 | 1 | 1 | 8 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2018 | 1 | 1 | 0 | 7 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2014 | 1 | 1 | 1 | 7 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
State executives
| Montana state executive competitiveness, 2014-2022 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 9 | 9 | 4 | 27 | 18 | 2 | 6 | 44.4% | 3 | 60.0% | ||||
| 2022 | 2 | 2 | 1 | 8 | 4 | 1 | 2 | 75.0% | 1 | 100.0% | ||||
| 2020 | 8 | 8 | 6 | 35 | 16 | 4 | 7 | 68.8% | 1 | 50.0% | ||||
| 2018 | 2 | 2 | 1 | 9 | 4 | 1 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 9 | 9 | 4 | 24 | 18 | 3 | 3 | 33.3% | 3 | 60.0% | ||||
| 2014 | 2 | 2 | 1 | 5 | 4 | 0 | 1 | 25.0% | 0 | 0.0% | ||||
State legislature
| Montana state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 125 | 125 | 52 | 301 | 250 | 15 | 44 | 23.6% | 24 | 32.0% | ||||
| 2022 | 125 | 125 | 39 | 266 | 250 | 13 | 31 | 17.6% | 13 | 15.1% | ||||
| 2020 | 125 | 125 | 41 | 268 | 250 | 16 | 35 | 20.4% | 23 | 27.4% | ||||
| 2018 | 125 | 125 | 36 | 261 | 250 | 17 | 21 | 15.2% | 10 | 11.2% | ||||
| 2016 | 125 | 125 | 47 | 289 | 250 | 14 | 36 | 20.0% | 14 | 17.5% | ||||
| 2014 | 125 | 125 | 45 | 294 | 250 | 21 | 38 | 23.6% | 18 | 22.5% | ||||
Nebraska
Nebraska had two separate filing deadlines: February 15, 2024, for incumbents and March 1, 2024 for non-incumbents. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Nebraska primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| U.S. Senate | 2 | 2 | 0 | 6 | 4 | 0 | 2 | N/A | 50.0% | 2 | 100.0% | |||
| U.S. House | 3 | 3 | 0 | 11 | 6 | 1 | 3 | N/A | 66.7% | 3 | 100.0% | |||
| State executive | 10 | 10 | 4 | 20 | 12 | 0 | 0 | 3 | 25.0% | 1 | 16.7% | |||
| State legislature | 25 | 25 | 15 | 73 | 25 | N/A | N/A | 15 | 60.0% | 5 | 50.0% | |||
| Totals | 40 | 40 | 19 | 110 | 47 | 1 | 5 | 18 | 51.1% | 11 | 52.4% | |||
U.S. Senate
| Nebraska U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 2 | 2 | 0 | 6 | 4 | 0 | 2 | 50.0% | 2 | 100.0% | ||||
| 2020 | 1 | 1 | 0 | 9 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 9 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2014 | 1 | 1 | 1 | 7 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
U.S. House
| Nebraska U.S. House primary competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 3 | 3 | 0 | 11 | 6 | 1 | 3 | 66.7% | 3 | 100.0% | ||||
| 2022 | 3 | 3 | 1 | 15 | 6 | 3 | 3 | 100.0% | 2 | 100.0% | ||||
| 2020 | 3 | 3 | 0 | 14 | 6 | 2 | 2 | 66.7% | 2 | 66.7% | ||||
| 2018 | 3 | 3 | 0 | 11 | 6 | 2 | 1 | 50.0% | 1 | 33.3% | ||||
| 2016 | 3 | 3 | 0 | 6 | 6 | 0 | 1 | 16.7% | 0 | 0.0% | ||||
| 2014 | 3 | 3 | 0 | 11 | 6 | 1 | 3 | 66.7% | 3 | 100.0% | ||||
State executives
| Nebraska state executive primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| 2024 | 10 | 10 | 4 | 20 | 12 | 0 | 0 | 3 | 25.0% | 1 | 16.7% | |||
| 2022 | 13 | 13 | 5 | 45 | 20 | 1 | 7 | 3 | 55.0% | 6 | 75.0% | |||
| 2020 | 7 | 7 | 3 | 14 | 8 | 0 | 1 | 1 | 25.0% | 0 | 0.0% | |||
| 2018 | 15 | 15 | 5 | 37 | 22 | 2 | 4 | 3 | 40.9% | 4 | 40.0% | |||
| 2016 | 2 | 2 | 0 | 5 | 4 | 0 | 2 | N/A | 50.0% | 2 | 100.0% | |||
| 2014 | 6 | 6 | 4 | 20 | 12 | 2 | 4 | N/A | 50.0% | 1 | 50.0% | |||
State legislature
| Nebraska state legislative primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| 2024 | 25 | 25 | 15 | 73 | 25 | 15 | 60.0% | 5 | 50.0% | |||||
| 2022 | 24 | 24 | 13 | 66 | 24 | 14 | 58.3% | 6 | 54.5% | |||||
| 2020 | 25 | 25 | 6 | 61 | 25 | 6 | 24.0% | 2 | 10.5% | |||||
| 2018 | 24 | 24 | 8 | 59 | 24 | 10 | 41.7% | 5 | 31.3% | |||||
| 2016 | 25 | 25 | 11 | 63 | 25 | 13 | 52.0% | 4 | 28.6% | |||||
| 2014 | 24 | 24 | 17 | 64 | 24 | 11 | 45.8% | 1 | 14.3% | |||||
Nevada
Nevada's primary filing deadline was on March 15, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Nevada primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| U.S. Senate | 1 | 1 | 0 | 15 | 2 | 1 | 1 | N/A | 100.0% | 1 | 100.0% | |||
| U.S. House | 4 | 4 | 0 | 22 | 8 | 2 | 4 | N/A | 75.0% | 3 | 75.0% | |||
| State executives | 8 | 8 | 2 | 23 | 8 | 0 | 0 | 5 | 62.5% | 4 | 66.7% | |||
| State legislature | 52 | 52 | 15 | 133 | 104 | 16 | 17 | 0 | 31.7% | 8 | 21.6% | |||
| Totals | 65 | 65 | 17 | 193 | 122 | 19 | 22 | 5 | 37.7% | 16 | 33.3% | |||
U.S. Senate
| Nevada U.S. Senate primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 15 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2022 | 1 | 1 | 0 | 12 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 11 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2016 | 1 | 1 | 1 | 13 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
U.S. House
| Nevada U.S. House primary competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 4 | 4 | 0 | 22 | 8 | 2 | 4 | 75.0% | 3 | 75.0% | ||||
| 2022 | 4 | 4 | 0 | 33 | 8 | 3 | 4 | 87.5% | 3 | 75.0% | ||||
| 2020 | 4 | 4 | 0 | 40 | 8 | 4 | 4 | 100.0% | 4 | 100.0% | ||||
| 2018 | 4 | 4 | 2 | 42 | 8 | 4 | 4 | 100.0% | 2 | 100.0% | ||||
| 2016 | 4 | 4 | 1 | 37 | 8 | 4 | 3 | 87.5% | 2 | 66.7% | ||||
| 2014 | 4 | 4 | 0 | 19 | 8 | 4 | 2 | 75.0% | 2 | 50.0% | ||||
State executives
| Nevada state executive primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| 2024 | 8 | 8 | 2 | 23 | 8 | 0 | 0 | 5 | 62.5% | 4 | 66.7% | |||
| 2022 | 11 | 11 | 6 | 66 | 17 | 4 | 5 | 5 | 82.4% | 4 | 80.0% | |||
| 2020 | 8 | 8 | 6 | 26 | 6 | N/A | N/A | 6 | 100.0% | 2 | 100.0% | |||
| 2018 | 10 | 10 | 7 | 21 | 16 | 3 | 5 | 2 | 62.5% | 1 | 33.3% | |||
| 2016 | N/A[24] | |||||||||||||
| 2014 | 6 | 6 | 5 | 28 | 12 | 2 | 3 | N/A | 41.7% | 1 | 100.0% | |||
State legislature
| Nevada state legislative primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 52 | 52 | 15 | 133 | 104 | 16 | 17 | 31.7% | 8 | 21.6% | ||||
| 2022 | 53 | 53 | 19 | 180 | 106 | 17 | 31 | 45.3% | 13 | 38.2% | ||||
| 2020 | 52 | 52 | 13 | 132 | 104 | 14 | 15 | 27.9% | 7 | 17.9% | ||||
| 2018 | 53 | 53 | 15 | 134 | 106 | 16 | 17 | 31.1% | 8 | 21.1% | ||||
| 2016 | 52 | 52 | 11 | 134 | 104 | 15 | 24 | 37.5% | 17 | 41.5% | ||||
| 2014 | 53 | 53 | 10 | 134 | 106 | 12 | 20 | 30.2% | 13 | 30.2% | ||||
New Hampshire
New Hampshire's primary filing deadline was on June 14, 2024. Candidates filed to run for U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| New Hampshire primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 2 | 2 | 1 | 24 | 4 | 2 | 2 | 100.0% | 1 | 100.0% | ||||
| State executives | 6 | 6 | 3 | 27 | 12 | 3 | 3 | 50.0% | 0 | 0.0% | ||||
| State legislature | 227 | 424 | 95 | 837 | 454 | 18 | 34 | 11.5% | 86 | 26.1% | ||||
| Totals | 235 | 432 | 99 | 888 | 470 | 23 | 39 | 13.2% | 87 | 26.1% | ||||
U.S. House
| New Hampshire U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 2 | 2 | 1 | 24 | 4 | 2 | 2 | 100.0% | 1 | 100.0% | ||||
| 2022 | 2 | 2 | 0 | 19 | 4 | 0 | 2 | 50.0% | 0 | 0.0% | ||||
| 2020 | 2 | 2 | 0 | 12 | 4 | 1 | 2 | 75.0% | 1 | 50.0% | ||||
| 2018 | 2 | 2 | 1 | 25 | 4 | 1 | 2 | 75.0% | 0 | 0.0% | ||||
| 2016 | 2 | 2 | 0 | 14 | 4 | 0 | 2 | 50.0% | 1 | 50.0% | ||||
| 2014 | 2 | 2 | 0 | 10 | 4 | 0 | 2 | 50.0% | 0 | 0.0% | ||||
State executives
| New Hampshire state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 6 | 6 | 3 | 27 | 12 | 3 | 3 | 50.0% | 0 | 0.0% | ||||
| 2022 | 6 | 6 | 0 | 22 | 12 | 1 | 4 | 41.7% | 4 | 66.7% | ||||
| 2020 | 6 | 6 | 2 | 28 | 12 | 4 | 5 | 75.0% | 1 | 25.0% | ||||
| 2018 | 6 | 6 | 1 | 16 | 12 | 2 | 2 | 33.3% | 1 | 20.0% | ||||
| 2016 | 6 | 6 | 3 | 20 | 12 | 1 | 1 | 16.7% | 0 | 0.0% | ||||
| 2014 | 1 | 1 | 0 | 7 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
State legislature
New Hampshire usesmulti-member state legislative districts, meaning there are multiple seats in some or all state legislative districts. The percentage of total contested primaries divides the number of primaries by the number of districts multiplied by two to account for all possible Democratic and Republican primaries.
| New Hampshire state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 227 | 424 | 95 | 837 | 454 | 18 | 34 | 11.5% | 86 | 26.1% | ||||
| 2022 | 227 | 424 | 126 | 913 | 454 | 20 | 69 | 19.6% | 116 | 38.4% | ||||
| 2020 | 228 | 424 | 81 | 914 | 456 | 30 | 37 | 14.7% | 100 | 29.1% | ||||
| 2018 | 228 | 424 | 105 | 877 | 456 | 34 | 36 | 15.4% | 87 | 27.2% | ||||
| 2016 | 228 | 424 | 118 | 864 | 456 | 25 | 51 | 16.7% | 125 | 40.7% | ||||
| 2014 | 228 | 424 | 113 | 879 | 456 | 20 | 58 | 17.1% | 104 | 33.2% | ||||
New Jersey
New Jersey's primary filing deadline was on March 25, 2024. Candidates filed to run for U.S. Senate and U.S. House. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| New Jersey primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 7 | 2 | 1 | 1 | 100.0% | 0 | 0.0% | ||||
| U.S. House | 12 | 12 | 1 | 50 | 24 | 7 | 9 | 66.7% | 7 | 63.6% | ||||
| Totals | 13 | 13 | 1 | 57 | 26 | 8 | 10 | 69.2% | 7 | 63.6% | ||||
U.S. Senate
| New Jersey U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 7 | 2 | 1 | 1 | 100.0% | 0 | 0.0% | ||||
| 2020 | 1 | 1 | 0 | 7 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 4 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2014 | 1 | 1 | 0 | 5 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
U.S. House
| New Jersey U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 12 | 12 | 1 | 50 | 24 | 7 | 9 | 66.7% | 7 | 63.6% | ||||
| 2022 | 12 | 12 | 1 | 56 | 24 | 6 | 9 | 62.5% | 6 | 54.5% | ||||
| 2020 | 12 | 12 | 0 | 50 | 24 | 8 | 7 | 62.5% | 8 | 66.7% | ||||
| 2018 | 12 | 12 | 2 | 49 | 24 | 8 | 4 | 50.0% | 5 | 50.0% | ||||
| 2016 | 12 | 12 | 0 | 37 | 24 | 6 | 4 | 41.7% | 7 | 58.3% | ||||
| 2014 | 12 | 12 | 3 | 45 | 24 | 7 | 5 | 50.0% | 4 | 44.4% | ||||
New Mexico
New Mexico's primary filing deadline was on March 12, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| New Mexico primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| U.S. House | 3 | 3 | 0 | 7 | 6 | 0 | 1 | 16.7% | 0 | 0.0% | ||||
| State executives | 5 | 5 | 1 | 6 | 10 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| State legislature | 112 | 112 | 19 | 213 | 224 | 25 | 17 | 18.8% | 22 | 23.7% | ||||
| Totals | 121 | 121 | 20 | 228 | 242 | 25 | 18 | 17.8% | 22 | 21.8% | ||||
U.S. Senate
| New Mexico U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2020 | 1 | 1 | 1 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2018 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2014 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
U.S. House
| New Mexico U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 3 | 3 | 0 | 7 | 6 | 0 | 1 | 16.7% | 0 | 0.0% | ||||
| 2022 | 3 | 3 | 0 | 8 | 6 | 1 | 1 | 33.3% | 0 | 0.0% | ||||
| 2020 | 3 | 3 | 1 | 19 | 6 | 1 | 3 | 66.7% | 0 | 0.0% | ||||
| 2018 | 3 | 3 | 2 | 15 | 6 | 2 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 3 | 3 | 0 | 7 | 6 | 0 | 1 | 16.7% | 0 | 0.0% | ||||
| 2014 | 3 | 3 | 0 | 8 | 6 | 1 | 1 | 33.3% | 1 | 33.3% | ||||
State executives
| New Mexico state executive competitiveness, 2014-2022 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 5 | 5 | 1 | 6 | 10 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2022 | 12 | 12 | 7 | 26 | 24 | 3 | 2 | 20.8% | 0 | 0.0% | ||||
| 2020 | 7 | 7 | 4 | 14 | 14 | 3 | 1 | 28.6% | 1 | 33.3% | ||||
| 2018 | 15 | 15 | 8 | 37 | 30 | 6 | 2 | 26.7% | 2 | 28.6% | ||||
| 2016 | 8 | 8 | 6 | 8 | 16 | 1 | 0 | 6.3% | 1 | 50.0% | ||||
| 2014 | 17 | 17 | 6 | 41 | 34 | 5 | 0 | 14.7% | 1 | 9.1% | ||||
State legislature
| New Mexico state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 112 | 112 | 19 | 213 | 224 | 25 | 17 | 18.8% | 22 | 23.7% | ||||
| 2022 | 70 | 70 | 12 | 128 | 140 | 13 | 9 | 15.7% | 12 | 20.7% | ||||
| 2020 | 112 | 112 | 11 | 239 | 224 | 25 | 13 | 17.0% | 20 | 19.8% | ||||
| 2018 | 70 | 70 | 9 | 118 | 140 | 10 | 3 | 9.3% | 6 | 9.8% | ||||
| 2016 | 112 | 112 | 10 | 189 | 224 | 19 | 4 | 10.3% | 9 | 8.8% | ||||
| 2014 | 70 | 70 | 11 | 125 | 140 | 12 | 6 | 12.9% | 7 | 11.9% | ||||
New York
New York's primary filing deadline was on April 4, 2024. Candidates filed to run for U.S. Senate, U.S. House, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| New York primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| U.S. House | 26 | 26 | 0 | 59 | 52 | 5 | 1 | 11.5% | 4 | 15.4% | ||||
| State legislature | 213 | 213 | 17 | 396 | 426 | 31 | 4 | 8.2% | 18 | 9.2% | ||||
| Totals | 240 | 240 | 17 | 457 | 480 | 36 | 5 | 8.5% | 22 | 9.9% | ||||
U.S. Senate
| New York U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2018 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
U.S. House
| New York U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 26 | 26 | 0 | 59 | 52 | 5 | 1 | 11.5% | 4 | 15.4% | ||||
| 2022 | 26 | 26 | 7 | 107 | 52 | 16 | 8 | 46.2% | 13 | 68.4% | ||||
| 2020 | 27 | 27 | 4 | 108 | 54 | 16 | 7 | 42.6% | 11 | 47.8% | ||||
| 2018 | 27 | 27 | 1 | 85 | 54 | 13 | 1 | 25.9% | 6 | 23.1% | ||||
| 2016 | 27 | 27 | 4 | 77 | 54 | 10 | 3 | 24.1% | 5 | 21.7% | ||||
| 2014 | 27 | 27 | 2 | 55 | 54 | 5 | 5 | 18.5% | 5 | 20.0% | ||||
State legislature
| New York state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 213 | 213 | 17 | 396 | 426 | 31 | 4 | 8.2% | 18 | 9.2% | ||||
| 2022 | 213 | 213 | 25 | 449 | 426 | 53 | 10 | 14.8% | 46 | 24.1% | ||||
| 2020 | 213 | 213 | 33 | 448 | 426 | 53 | 6 | 13.8% | 35 | 19.4% | ||||
| 2018 | 213 | 213 | 18 | 406 | 426 | 39 | 9 | 11.3% | 31 | 15.9% | ||||
| 2016 | 213 | 213 | 19 | 412 | 426 | 39 | 15 | 12.7% | 33 | 17.0% | ||||
| 2014 | 213 | 213 | 21 | 412 | 426 | 37 | 9 | 10.8% | 27 | 14.1% | ||||
North Carolina
North Carolina's primary filing deadline was on December 15, 2023. Candidates filed to run for U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| North Carolina primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 14 | 14 | 5 | 64 | 28 | 2 | 11 | 46.4% | 4 | 44.4% | ||||
| State executives | 10 | 10 | 5 | 60 | 20 | 6 | 9 | 75.0% | 3 | 60.0% | ||||
| State legislature | 170 | 170 | 21 | 363 | 340 | 19 | 24 | 12.6% | 19 | 12.8% | ||||
| Totals | 194 | 194 | 31 | 487 | 388 | 27 | 44 | 18.3% | 26 | 16.0% | ||||
U.S. House
| North Carolina U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 14 | 14 | 5 | 64 | 28 | 2 | 11 | 46.4% | 4 | 44.4% | ||||
| 2022 | 14 | 14 | 4 | 100 | 28 | 9 | 13 | 78.6% | 7 | 70.0% | ||||
| 2020 | 13 | 13 | 3 | 64 | 26 | 8 | 5 | 50.0% | 3 | 30.0% | ||||
| 2018 | 13 | 13 | 0 | 56 | 26 | 10 | 7 | 65.4% | 8 | 61.5% | ||||
| 2016 | 13 | 13 | 1 | 74 | 26 | 6 | 10 | 61.5% | 9 | 75.0% | ||||
| 2014 | 13 | 13 | 3 | 60 | 26 | 8 | 9 | 65.4% | 6 | 60.0% | ||||
State executives
| North Carolina state executive competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 10 | 10 | 5 | 60 | 20 | 6 | 9 | 75.0% | 3 | 60.0% | ||||
| 2020 | 10 | 10 | 3 | 53 | 20 | 2 | 4 | 30.0% | 1 | 14.3% | ||||
| 2016 | 10 | 10 | 2 | 37 | 20 | 6 | 6 | 60.0% | 3 | 37.5% | ||||
State legislature
| North Carolina state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 170 | 170 | 21 | 363 | 340 | 19 | 24 | 12.6% | 19 | 12.8% | ||||
| 2022 | 170 | 170 | 30 | 386 | 340 | 29 | 44 | 21.5% | 33 | 22.9% | ||||
| 2020 | 170 | 170 | 26 | 401 | 340 | 29 | 30 | 17.4% | 24 | 16.7% | ||||
| 2018 | 170 | 170 | 19 | 435 | 340 | 34 | 41 | 22.1% | 39 | 25.5% | ||||
| 2016 | 170 | 170 | 20 | 337 | 340 | 27 | 34 | 17.9% | 31 | 20.7% | ||||
| 2014 | 170 | 170 | 14 | 336 | 340 | 22 | 31 | 15.6% | 29 | 18.6% | ||||
North Dakota
North Dakota's primary filing deadline was on April 8, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| North Dakota primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested Top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| U.S. Senate | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0 | 0.0% | 0 | 0.0% | |||
| U.S. House | 1 | 1 | 1 | 7 | 2 | 1 | 1 | 0 | 100.0% | 0 | 0.0% | |||
| State executives | 7 | 7 | 2 | 16 | 13 | 0 | 2 | 1 | 23.1% | 1 | 20.0% | |||
| State legislature | 47 | 69 | 17 | 125 | 94 | 0 | 16 | 0 | 17.0% | 20 | 38.5% | |||
| Totals | 56 | 78 | 20 | 150 | 111 | 1 | 19 | 1 | 18.9% | 21 | 36.2% | |||
U.S. Senate
| North Dakota U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 0 | 4 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
U.S. House
| North Dakota U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 1 | 7 | 2 | 1 | 1 | 100.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2020 | 1 | 1 | 0 | 3 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
| 2018 | 1 | 1 | 1 | 5 | 2 | 0 | 1 | 50.0% | 0 | N/A | ||||
| 2016 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2014 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
State executives
| North Dakota state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| 2024 | 7 | 7 | 2 | 16 | 13 | 0 | 2 | 1 | 23.1% | 1 | 20.0% | |||
| 2022 | 5 | 5 | 1 | 10 | 10 | 0 | 1 | N/A | 10.0% | 0 | 0.0% | |||
| 2020 | 6 | 6 | 1 | 15 | 11 | 0 | 3 | 1 | 36.4% | 2 | 40.0% | |||
| 2018 | 6 | 6 | 1 | 12 | 12 | 0 | 0 | N/A | 0.0% | 0 | 0.0% | |||
| 2016 | 6 | 6 | 3 | 13 | 11 | 0 | 1 | 0 | 9.1% | 0 | 0.0% | |||
| 2014 | 6 | 6 | 0 | 12 | 12 | 0 | 0 | N/A | 0.0% | 0 | 0.0% | |||
State legislature
North Dakota usesmulti-member state legislative districts, meaning there are multiple seats in some or all state legislative districts. The percentage of total contested primaries divides the number of primaries by the number of districts multiplied by two to account for all possible Democratic and Republican primaries.
| North Dakota state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 47 | 69 | 17 | 125 | 94 | 0 | 16 | 17.0% | 20 | 38.5% | ||||
| 2022 | 67 | 98 | 26 | 168 | 134 | 3 | 21 | 17.9% | 27 | 36.0% | ||||
| 2020 | 46 | 69 | 6 | 130 | 92 | 0 | 6 | 6.5% | 5 | 7.9% | ||||
| 2018 | 48 | 72 | 12 | 132 | 96 | 0 | 6 | 6.3% | 6 | 10.0% | ||||
| 2016 | 47 | 70 | 15 | 141 | 94 | 0 | 4 | 4.3% | 7 | 12.7% | ||||
| 2014 | 48 | 72 | 13 | 127 | 96 | 1 | 3 | 4.2% | 4 | 6.8% | ||||
Ohio
Ohio's primary filing deadline was on December 20, 2023. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Ohio primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| U.S. House | 15 | 15 | 2 | 61 | 30 | 6 | 8 | 46.7% | 4 | 30.8% | ||||
| State executives | 6 | 6 | 6 | 11 | 0 | 0 | 0 | N/A | 0 | N/A | ||||
| State legislature | 115 | 115 | 28 | 286 | 230 | 19 | 32 | 22.2% | 24 | 27.6% | ||||
| Totals | 137 | 137 | 36 | 362 | 262 | 25 | 41 | 25.2% | 28 | 27.7% | ||||
U.S. Senate
| Ohio U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 1 | 10 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2018 | 1 | 1 | 0 | 6 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 0 | 5 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
U.S. House
| Ohio U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 15 | 15 | 2 | 61 | 30 | 6 | 8 | 46.7% | 4 | 30.8% | ||||
| 2022 | 15 | 15 | 1 | 67 | 30 | 8 | 10 | 60.0% | 6 | 42.9% | ||||
| 2020 | 16 | 16 | 0 | 67 | 32 | 11 | 11 | 68.8% | 10 | 62.5% | ||||
| 2018 | 16 | 16 | 2 | 82 | 32 | 12 | 11 | 71.9% | 8 | 57.1% | ||||
| 2016 | 16 | 16 | 1 | 59 | 32 | 5 | 5 | 31.3% | 4 | 26.7% | ||||
| 2014 | 16 | 16 | 0 | 47 | 32 | 6 | 6 | 37.5% | 5 | 31.3% | ||||
State executives
| Ohio state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 6 | 6 | 6 | 11 | 0 | 0 | 0 | N/A | 0 | N/A | ||||
| 2022 | 10 | 10 | 3 | 65 | 20 | 9 | 7 | 80.0% | 5 | 71.4% | ||||
| 2018 | 5 | 5 | 5 | 17 | 10 | 1 | 2 | 30.0% | 0 | N/A | ||||
| 2014 | 5 | 5 | 0 | 10 | 10 | 1 | 0 | 10.0% | 0 | 0.0% | ||||
State legislature
| Ohio state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 115 | 115 | 28 | 286 | 230 | 19 | 32 | 22.2% | 24 | 27.6% | ||||
| 2022 | 116 | 116 | 31 | 256 | 232 | 19 | 28 | 20.3% | 20 | 23.3% | ||||
| 2020 | 115 | 115 | 23 | 262 | 230 | 15 | 23 | 16.5% | 14 | 15.2% | ||||
| 2018 | 116 | 116 | 42 | 314 | 232 | 30 | 33 | 27.2% | 20 | 27.0% | ||||
| 2016 | 115 | 115 | 29 | 271 | 230 | 16 | 27 | 18.7% | 14 | 16.3% | ||||
| 2014 | 116 | 116 | 26 | 288 | 232 | 17 | 34 | 22.0% | 23 | 25.6% | ||||
Oklahoma
Oklahoma's primary filing deadline was on April 5, 2024. Candidates filed to run for U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Oklahoma primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 5 | 5 | 0 | 18 | 10 | 2 | 3 | 50.0% | 3 | 60.0% | ||||
| State executives | 1 | 1 | 1 | 4 | 2 | 0 | 1 | 50.0% | 0 | N/A | ||||
| State legislature | 125 | 125 | 22 | 240 | 250 | 6 | 45 | 20.4% | 29 | 28.2% | ||||
| Totals | 131 | 131 | 23 | 262 | 262 | 8 | 49 | 21.8% | 32 | 29.6% | ||||
U.S. House
| Oklahoma U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 5 | 5 | 0 | 18 | 10 | 2 | 3 | 50.0% | 3 | 60.0% | ||||
| 2022 | 5 | 5 | 1 | 28 | 10 | 0 | 4 | 40.0% | 3 | 75.0% | ||||
| 2020 | 5 | 5 | 0 | 27 | 10 | 3 | 3 | 60.0% | 3 | 60.0% | ||||
| 2018 | 5 | 5 | 1 | 36 | 10 | 5 | 4 | 90.0% | 3 | 75.0% | ||||
| 2016 | 5 | 5 | 0 | 20 | 10 | 3 | 5 | 80.0% | 5 | 100.0% | ||||
| 2014 | 5 | 5 | 1 | 22 | 10 | 3 | 4 | 70.0% | 3 | 75.0% | ||||
State executives
| Oklahoma state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 1 | 4 | 2 | 0 | 1 | 50.0% | 0 | N/A | ||||
| 2022 | 9 | 9 | 3 | 31 | 18 | 1 | 7 | 44.4% | 4 | 66.7% | ||||
| 2020 | 1 | 1 | 0 | 2 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| 2018 | 9 | 9 | 6 | 45 | 18 | 4 | 8 | 66.7% | 3 | 100.0% | ||||
| 2016 | 1 | 1 | 0 | 1 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2014 | 9 | 9 | 1 | 22 | 18 | 1 | 4 | 27.8% | 3 | 37.5% | ||||
State legislature
| Oklahoma state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 125 | 125 | 22 | 240 | 250 | 6 | 45 | 20.4% | 29 | 28.2% | ||||
| 2022 | 125 | 125 | 20 | 235 | 250 | 6 | 43 | 19.6% | 26 | 24.8% | ||||
| 2020 | 125 | 125 | 11 | 241 | 250 | 8 | 44 | 20.8% | 33 | 28.9% | ||||
| 2018 | 125 | 125 | 43 | 419 | 250 | 49 | 68 | 46.8% | 37 | 45.1% | ||||
| 2016 | 125 | 125 | 41 | 333 | 250 | 28 | 55 | 33.2% | 28 | 33.3% | ||||
| 2014 | 125 | 125 | 30 | 253 | 250 | 12 | 33 | 18.0% | 13 | 13.7% | ||||
Oregon
Oregon's primary filing deadline was on March 14, 2024. Candidates filed to run for U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Oregon primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| U.S. House | 6 | 6 | 1 | 30 | 12 | 5 | 4 | N/A | 75.0% | 3 | 60.0% | |||
| State executive | 3 | 3 | 3 | 15 | 6 | 3 | 2 | N/A | 83.3% | 0 | N/A | |||
| State legislature | 75 | 75 | 14 | 155 | 150 | 12 | 15 | N/A | 18.0% | 11 | 18.0% | |||
| Totals | 84 | 84 | 18 | 200 | 168 | 20 | 21 | 0 | 24.4% | 14 | 21.2% | |||
U.S. House
| Oregon U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 6 | 6 | 1 | 30 | 12 | 5 | 4 | 75% | 3 | 60.0% | ||||
| 2022 | 6 | 6 | 2 | 45 | 12 | 6 | 4 | 83.3% | 4 | 100.0% | ||||
| 2020 | 5 | 5 | 1 | 40 | 10 | 5 | 5 | 100.0% | 4 | 100.0% | ||||
| 2018 | 5 | 5 | 0 | 32 | 10 | 5 | 4 | 90.0% | 5 | 100.0% | ||||
| 2016 | 5 | 5 | 0 | 19 | 10 | 3 | 4 | 70.0% | 4 | 80.0% | ||||
| 2014 | 5 | 5 | 0 | 17 | 10 | 2 | 3 | 50.0% | 2 | 40.0% | ||||
State executives
| Oregon state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| 2024 | 3 | 3 | 3 | 15 | 6 | 3 | 2 | 0 | 83.3% | 0 | N/A | |||
| 2022 | 2 | 2 | 2 | 41 | 3 | 1 | 1 | 1 | 100.0% | 0 | N/A | |||
| 2020 | 3 | 3 | 1 | 9 | 6 | 1 | 1 | N/A | 33.3% | 0 | 0.0% | |||
| 2018 | 2 | 2 | 1 | 16 | 3 | 1 | 1 | 1 | 100.0% | 1 | 100.0% | |||
| 2016 | 3 | 3 | 2 | 9 | 6 | 1 | 1 | N/A | 33.3% | 0 | 0.0% | |||
| 2014 | 1 | 1 | 0 | 8 | 2 | 1 | 1 | N/A | 100.0% | 1 | 100.0% | |||
State legislature
| Oregon state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 75 | 75 | 14 | 155 | 150 | 12 | 15 | 18.0% | 11 | 18.0% | ||||
| 2022 | 75 | 75 | 24 | 188 | 150 | 14 | 23 | 24.7% | 9 | 17.6% | ||||
| 2020 | 75 | 75 | 15 | 189 | 150 | 20 | 13 | 22.0% | 5 | 8.3% | ||||
| 2018 | 75 | 75 | 8 | 157 | 150 | 13 | 12 | 16.7% | 9 | 13.4% | ||||
| 2016 | 75 | 75 | 17 | 140 | 150 | 12 | 5 | 11.3% | 4 | 6.9% | ||||
| 2014 | 75 | 75 | 15 | 155 | 150 | 7 | 13 | 13.3% | 6 | 10.0% | ||||
Pennsylvania
Pennsylvania's primary filing deadline was on February 13, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Pennsylvania primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| U.S. House | 17 | 17 | 0 | 45 | 34 | 4 | 2 | 17.6% | 3 | 17.6% | ||||
| State executives | 3 | 3 | 1 | 13 | 6 | 3 | 1 | 66.7% | 0 | 0.0% | ||||
| State legislature | 228 | 228 | 16 | 401 | 456 | 17 | 20 | 8.1% | 21 | 9.9% | ||||
| Totals | 249 | 249 | 17 | 461 | 498 | 24 | 23 | 9.4% | 24 | 10.3% | ||||
U.S. Senate
| Pennsylvania U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 1 | 11 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2018 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 0 | 5 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
U.S. House
| Pennsylvania U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 17 | 17 | 0 | 45 | 34 | 4 | 2 | 17.6% | 3 | 17.6% | ||||
| 2022 | 17 | 17 | 2 | 48 | 34 | 5 | 6 | 32.4% | 2 | 13.3% | ||||
| 2020 | 18 | 18 | 0 | 51 | 36 | 6 | 5 | 30.6% | 2 | 11.1% | ||||
| 2018 | 18 | 18 | 7 | 84 | 36 | 13 | 8 | 58.3% | 6 | 54.5% | ||||
| 2016 | 18 | 18 | 2 | 44 | 36 | 4 | 5 | 25.0% | 4 | 25.0% | ||||
| 2014 | 18 | 18 | 2 | 46 | 36 | 6 | 3 | 25.0% | 2 | 12.5% | ||||
State executives
| Pennsylvania state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 3 | 3 | 1 | 13 | 6 | 3 | 1 | 66.7% | 0 | 0.0% | ||||
| 2022 | 2 | 2 | 2 | 22 | 4 | 1 | 2 | 75.0% | 0 | N/A | ||||
| 2020 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2018 | 2 | 2 | 0 | 13 | 4 | 1 | 2 | 75.0% | 1 | 50.0% | ||||
| 2016 | 3 | 3 | 2 | 9 | 6 | 1 | 1 | 33.3% | 0 | 0.0% | ||||
| 2014 | 2 | 2 | 0 | 11 | 4 | 2 | 0 | 50.0% | 0 | 0.0% | ||||
State legislature
| Pennsylvania state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 228 | 228 | 16 | 401 | 456 | 17 | 20 | 8.1% | 21 | 9.9% | ||||
| 2022 | 228 | 228 | 41 | 465 | 456 | 35 | 46 | 17.8% | 42 | 22.1% | ||||
| 2020 | 228 | 228 | 19 | 464 | 456 | 33 | 25 | 12.7% | 28 | 13.4% | ||||
| 2018 | 228 | 228 | 32 | 468 | 456 | 39 | 24 | 13.8% | 22 | 11.2% | ||||
| 2016 | 228 | 228 | 19 | 400 | 456 | 28 | 21 | 10.7% | 28 | 13.4% | ||||
| 2014 | 228 | 228 | 27 | 418 | 456 | 39 | 29 | 14.9% | 42 | 20.7% | ||||
Rhode Island
Rhode Island's primary filing deadline was June 26, 2024. Candidates filed to run for U.S. Senate, U.S. House, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Rhode Island primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 4 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| U.S. House | 2 | 2 | 0 | 4 | 4 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| State legislature | 113 | 113 | 9 | 175 | 226 | 18 | 0 | 8.0% | 12 | 11.5% | ||||
| Totals | 116 | 116 | 9 | 183 | 232 | 19 | 1 | 8.6% | 13 | 12.1% | ||||
U.S. Senate
| Rhode Island U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 4 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2020 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | N/A | ||||
| 2018 | 1 | 1 | 0 | 4 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2014 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | N/A | ||||
U.S. House
| Rhode Island U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 2 | 2 | 0 | 4 | 4 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2022 | 2 | 2 | 1 | 8 | 4 | 1 | 0 | 25.0% | 0 | 0.0% | ||||
| 2020 | 2 | 2 | 0 | 5 | 4 | 1 | 1 | 50.0% | 1 | 50.0% | ||||
| 2018 | 2 | 2 | 0 | 6 | 4 | 1 | 1 | 50.0% | 1 | 50.0% | ||||
| 2016 | 2 | 2 | 0 | 7 | 4 | 2 | 0 | 50.0% | 2 | 100.0% | ||||
| 2014 | 2 | 2 | 0 | 6 | 4 | 1 | 1 | 50.0% | 1 | 50.0% | ||||
State legislature
| Rhode Island state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 113 | 113 | 9 | 175 | 226 | 18 | 0 | 8.0% | 12 | 11.5% | ||||
| 2022 | 113 | 113 | 14 | 230 | 226 | 40 | 3 | 19.0% | 30 | 30.3% | ||||
| 2020 | 113 | 113 | 9 | 189 | 226 | 33 | 1 | 15.0% | 26 | 25.0% | ||||
| 2018 | 113 | 113 | 15 | 192 | 226 | 30 | 3 | 14.6% | 20 | 20.4% | ||||
| 2016 | 113 | 113 | 8 | 180 | 226 | 24 | 3 | 11.9% | 18 | 17.1% | ||||
| 2014 | 113 | 113 | 8 | 171 | 226 | 23 | 3 | 11.5% | 18 | 17.1% | ||||
South Carolina
South Carolina's primary filing deadline was on April 1, 2024. Candidates filed to run for U.S. House and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| South Carolina primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 7 | 7 | 1 | 29 | 14 | 4 | 5 | 64.3% | 3 | 50.0% | ||||
| State legislature | 170 | 170 | 20 | 346 | 340 | 27 | 52 | 23.2% | 51 | 34.0% | ||||
| Totals | 177 | 177 | 21 | 375 | 354 | 31 | 57 | 24.9% | 54 | 34.6% | ||||
U.S. House
| South Carolina U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 7 | 7 | 1 | 29 | 14 | 4 | 5 | 64.3% | 3 | 50.0% | ||||
| 2022 | 7 | 7 | 0 | 28 | 14 | 2 | 4 | 42.9% | 4 | 57.1% | ||||
| 2020 | 7 | 7 | 0 | 20 | 14 | 3 | 2 | 35.7% | 1 | 14.3% | ||||
| 2018 | 7 | 7 | 1 | 43 | 14 | 6 | 3 | 64.3% | 2 | 33.3% | ||||
| 2016 | 7 | 7 | 0 | 17 | 14 | 1 | 2 | 21.4% | 2 | 28.6% | ||||
| 2014 | 7 | 7 | 0 | 17 | 14 | 3 | 2 | 35.7% | 2 | 28.6% | ||||
State legislature
| South Carolina state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 170 | 170 | 20 | 346 | 340 | 27 | 52 | 23.2% | 51 | 34.0% | ||||
| 2022 | 124 | 124 | 15 | 243 | 248 | 12 | 36 | 19.4% | 34 | 30.6% | ||||
| 2020 | 170 | 170 | 14 | 335 | 340 | 26 | 38 | 18.8% | 36 | 23.1% | ||||
| 2018 | 124 | 124 | 8 | 231 | 248 | 12 | 33 | 18.1% | 36 | 31.0% | ||||
| 2016 | 170 | 170 | 17 | 302 | 340 | 20 | 39 | 17.4% | 42 | 27.5% | ||||
| 2014 | 124 | 124 | 9 | 190 | 248 | 8 | 21 | 11.7% | 20 | 17.4% | ||||
South Dakota
South Dakota's primary filing deadline was on March 26, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| South Dakota primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. House | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| State legislature | 72 | 105 | 36 | 207 | 144 | 1 | 44 | 31.3% | 42 | 60.9% | ||||
| Totals | 73 | 106 | 36 | 209 | 146 | 1 | 44 | 30.8% | 42 | 60.0% | ||||
U.S. House
| South Dakota U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 0 | 2 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| 2020 | 1 | 1 | 0 | 2 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 1 | 4 | 2 | 0 | 1 | 50.0% | 0 | N/A | ||||
| 2016 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2014 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
State legislature
South Dakota usesmulti-member state legislative districts, meaning there are multiple seats in some or all state legislative districts. The percentage of total contested primaries divides the number of primaries by the number of districts multiplied by two to account for all possible Democratic and Republican primaries.
| South Dakota state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 72 | 105 | 36 | 207 | 144 | 1 | 44 | 31.3% | 42 | 60.9% | ||||
| 2022 | 72 | 105 | 34 | 216 | 144 | 2 | 39 | 28.5% | 35 | 49.3% | ||||
| 2020 | 72 | 105 | 29 | 200 | 144 | 2 | 27 | 20.1% | 25 | 32.9% | ||||
| 2018 | 72 | 105 | 26 | 224 | 144 | 7 | 17 | 16.7% | 20 | 25.3% | ||||
| 2016 | 72 | 105 | 42 | 200 | 144 | 4 | 22 | 18.1% | 18 | 28.6% | ||||
| 2014 | 72 | 105 | 31 | 195 | 144 | 5 | 17 | 15.3% | 17 | 23.0% | ||||
Tennessee
Tennessee's primary filing deadline was on April 4, 2024. Candidates filed to run for U.S. Senate, U.S. House, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Tennessee primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 6 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| U.S. House | 9 | 9 | 0 | 31 | 18 | 4 | 2 | 33.3% | 3 | 33.3% | ||||
| State legislature | 115 | 115 | 8 | 239 | 230 | 14 | 27 | 17.8% | 28 | 26.2% | ||||
| Totals | 125 | 125 | 8 | 276 | 250 | 19 | 30 | 19.6% | 32 | 27.4% | ||||
U.S. Senate
| Tennessee U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 6 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2020 | 1 | 1 | 1 | 20 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2018 | 1 | 1 | 1 | 5 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2014 | 1 | 1 | 0 | 11 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
U.S. House
| Tennessee U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 9 | 9 | 0 | 31 | 18 | 4 | 2 | 33.3% | 3 | 33.3% | ||||
| 2022 | 9 | 9 | 1 | 36 | 18 | 4 | 4 | 44.4% | 3 | 37.5% | ||||
| 2020 | 9 | 9 | 2 | 45 | 18 | 6 | 2 | 44.4% | 3 | 42.9% | ||||
| 2018 | 9 | 9 | 2 | 49 | 18 | 6 | 7 | 72.2% | 5 | 71.4% | ||||
| 2016 | 9 | 9 | 2 | 48 | 18 | 4 | 6 | 55.6% | 5 | 71.4% | ||||
| 2014 | 9 | 9 | 0 | 39 | 18 | 3 | 8 | 61.1% | 8 | 88.9% | ||||
State legislature
| Tennessee state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 115 | 115 | 8 | 239 | 230 | 14 | 27 | 17.8% | 28 | 26.2% | ||||
| 2022 | 116 | 116 | 17 | 214 | 232 | 11 | 25 | 15.5% | 15 | 15.2% | ||||
| 2020 | 115 | 115 | 6 | 211 | 230 | 14 | 23 | 16.1% | 27 | 24.8% | ||||
| 2018 | 116 | 116 | 27 | 221 | 232 | 26 | 35 | 26.3% | 24 | 27.0% | ||||
| 2016 | 115 | 115 | 6 | 221 | 230 | 19 | 38 | 24.8% | 34 | 31.2% | ||||
| 2014 | 116 | 116 | 12 | 221 | 232 | 10 | 34 | 19.0% | 25 | 24.0% | ||||
Texas
Texas' primary filing deadline was on December 11, 2023. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Texas primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 12 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| U.S. House | 38 | 38 | 3 | 160 | 76 | 16 | 23 | 51.3% | 19 | 54.3% | ||||
| State executive | 8 | 8 | 1 | 26 | 16 | 2 | 4 | 37.5% | 4 | 57.1% | ||||
| State legislature | 165 | 165 | 17 | 411 | 330 | 33 | 60 | 28.2% | 60 | 40.5% | ||||
| Totals | 212 | 212 | 21 | 609 | 424 | 52 | 88 | 33.0% | 84 | 44.0% | ||||
U.S. Senate
| Texas U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 12 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2020 | 1 | 1 | 0 | 17 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 8 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2014 | 1 | 1 | 0 | 13 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
U.S. House
| Texas U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 38 | 38 | 3 | 160 | 76 | 16 | 23 | 51.3% | 19 | 54.3% | ||||
| 2022 | 38 | 38 | 6 | 222 | 76 | 17 | 27 | 57.9% | 19 | 59.4% | ||||
| 2020 | 36 | 36 | 6 | 231 | 72 | 24 | 26 | 69.4% | 18 | 60.0% | ||||
| 2018 | 36 | 36 | 8 | 212 | 72 | 25 | 21 | 63.9% | 15 | 53.6% | ||||
| 2016 | 36 | 36 | 2 | 127 | 72 | 13 | 20 | 45.8% | 19 | 55.9% | ||||
| 2014 | 36 | 36 | 1 | 100 | 72 | 6 | 13 | 26.4% | 12 | 34.3% | ||||
State executives
| Texas state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 8 | 8 | 1 | 26 | 16 | 2 | 4 | 37.5% | 4 | 57.1% | ||||
| 2022 | 22 | 22 | 5 | 115 | 44 | 12 | 17 | 65.9% | 11 | 64.7% | ||||
| 2020 | 9 | 9 | 4 | 28 | 18 | 4 | 3 | 38.9% | 2 | 40.0% | ||||
| 2018 | 14 | 14 | 3 | 56 | 28 | 10 | 7 | 60.7% | 9 | 81.8% | ||||
| 2016 | 1 | 1 | 1 | 10 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2014 | 7 | 7 | 6 | 37 | 14 | 3 | 7 | 71.4% | 1 | 100.0% | ||||
State legislature
| Texas state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 165 | 165 | 17 | 411 | 330 | 33 | 60 | 28.2% | 60 | 40.5% | ||||
| 2022 | 181 | 181 | 30 | 457 | 362 | 33 | 63 | 26.5% | 45 | 29.6% | ||||
| 2020 | 166 | 166 | 11 | 385 | 332 | 41 | 30 | 21.4% | 32 | 20.6% | ||||
| 2018 | 165 | 165 | 14 | 411 | 330 | 45 | 49 | 28.5% | 50 | 33.1% | ||||
| 2016 | 166 | 166 | 16 | 333 | 332 | 25 | 45 | 21.1% | 46 | 30.7% | ||||
| 2014 | 165 | 165 | 15 | 307 | 330 | 13 | 44 | 17.3% | 39 | 26.0% | ||||
Utah
Utah's primary filing deadline was on January 8, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Utah primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 1 | 5 | 2 | 0 | 1 | 50.0% | 0 | – | ||||
| U.S. House | 4 | 4 | 1 | 13 | 8 | 0 | 3 | 37.5% | 2 | 66.7% | ||||
| State executives | 13 | 13 | 4 | 26 | 26 | 0 | 9 | 34.6% | 6 | 75.0% | ||||
| State legislature | 89 | 89 | 16 | 172 | 178 | 2 | 20 | 12.4% | 12 | 16.2% | ||||
| Totals | 107 | 107 | 22 | 216 | 214 | 2 | 33 | 16.4% | 20 | 23.5% | ||||
U.S. Senate
| Utah U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 1 | 5 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 1 | 3 | 2 | 0 | 1 | 50.0% | 0 | N/A | ||||
| 2016 | 1 | 1 | 0 | 4 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
U.S. House
| Utah U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 4 | 4 | 1 | 13 | 8 | 0 | 3 | 37.5% | 2 | 66.7% | ||||
| 2022 | 4 | 4 | 0 | 13 | 8 | 0 | 4 | 50.0% | 4 | 100.0% | ||||
| 2020 | 4 | 4 | 1 | 15 | 8 | 1 | 2 | 37.5% | 0 | 0.0% | ||||
| 2018 | 4 | 4 | 0 | 10 | 8 | 1 | 1 | 25.0% | 1 | 25.0% | ||||
| 2016 | 4 | 4 | 0 | 10 | 8 | 0 | 2 | 25.0% | 2 | 50.0% | ||||
| 2014 | 4 | 4 | 1 | 17 | 8 | 2 | 4 | 75.0% | 3 | 100.0% | ||||
State executives
| Utah U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||
| 2024 | 13 | 13 | 4 | 26 | 26 | 0 | 9 | N/A | 34.6% | 6 | 75.0% | |||
| 2022 | 9 | 9 | 3 | 14 | 18 | 0 | 2 | N/A | 11.1% | 1 | 16.7% | |||
| 2020 | 13 | 13 | 6 | 24 | 26 | 0 | 5 | N/A | 19.2% | 3 | 42.9% | |||
| 2018 | 7 | 7 | 2 | 14 | 7 | N/A | N/A | 1 | 14.3% | 0 | 0.0% | |||
| 2016 | 4 | 4 | 0 | 9 | 8 | 0 | 1 | N/A | 12.5% | 1 | 25.0% | |||
State legislature
| Utah state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 89 | 89 | 16 | 172 | 178 | 2 | 20 | 12.4% | 12 | 16.2% | ||||
| 2022 | 90 | 90 | 8 | 160 | 180 | 3 | 20 | 12.8% | 15 | 18.3% | ||||
| 2020 | 90 | 90 | 13 | 167 | 180 | 1 | 17 | 10.0% | 12 | 15.6% | ||||
| 2018 | 89 | 89 | 24 | 181 | 178 | 3 | 14 | 9.6% | 3 | 4.6% | ||||
| 2016 | 90 | 90 | 14 | 157 | 180 | 0 | 10 | 5.6% | 6 | 7.9% | ||||
| 2014 | 89 | 89 | 12 | 169 | 178 | 1 | 6 | 3.9% | 4 | 5.2% | ||||
Vermont
Vermont's primary filing deadline was on May 30, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Vermont primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| U.S. House | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| State executives | 6 | 6 | 0 | 15 | 12 | 2 | 1 | 25.0% | 1 | 16.7% | ||||
| State legislature | 125 | 180 | 40 | 269 | 250 | 17 | 8 | 10.0% | 20 | 14.3% | ||||
| Totals | 133 | 188 | 40 | 288 | 266 | 19 | 9 | 10.5% | 21 | 14.2% | ||||
U.S. Senate
| Vermont U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 1 | 6 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2018 | 1 | 1 | 0 | 6 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2016 | 1 | 1 | 0 | 3 | 2 | 1 | 0 | 50.0% | 1 | 100.0% | ||||
U.S. House
| Vermont U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 1 | 7 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2020 | 1 | 1 | 0 | 6 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 5 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2016 | 1 | 1 | 0 | 1 | 2 | 0 | 0 | 0.0% | 0 | 0.0% | ||||
| 2014 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
State executives
| Vermont state executive competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 6 | 6 | 0 | 15 | 12 | 2 | 1 | 25.0% | 1 | 16.7% | ||||
| 2022 | 6 | 6 | 4 | 18 | 12 | 3 | 2 | 41.7% | 1 | 50.0% | ||||
| 2020 | 6 | 6 | 1 | 27 | 12 | 3 | 3 | 50.0% | 2 | 40.0% | ||||
| 2018 | 6 | 6 | 0 | 16 | 12 | 1 | 1 | 16.7% | 1 | 16.7% | ||||
| 2016 | 6 | 6 | 3 | 19 | 12 | 4 | 1 | 41.7% | 1 | 33.3% | ||||
| 2014 | 6 | 6 | 0 | 11 | 12 | 2 | 1 | 25.0% | 2 | 33.3% | ||||
State legislature
Vermont usesmulti-member state legislative districts, meaning there are multiple seats in some or all state legislative districts. The percentage of total contested primaries divides the number of primaries by the number of districts multiplied by two to account for all possible Democratic and Republican primaries.
| Vermont state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 125 | 180 | 40 | 269 | 250 | 17 | 8 | 10.0% | 20 | 14.3% | ||||
| 2022 | 125 | 180 | 57 | 277 | 250 | 17 | 7 | 9.6% | 18 | 14.4% | ||||
| 2020 | 117 | 180 | 22 | 305 | 234 | 22 | 7 | 12.4% | 26 | 16.5% | ||||
| 2018 | 117 | 180 | 32 | 249 | 234 | 11 | 3 | 6.0% | 19 | 12.8% | ||||
| 2016 | 117 | 180 | 28 | 288 | 234 | 19 | 2 | 9.0% | 27 | 17.8% | ||||
| 2014 | 117 | 180 | 27 | 253 | 234 | 6 | 5 | 4.7% | 8 | 5.2% | ||||
Virginia
Virginia's primary filing deadline was on April 4, 2024. Candidates filed to run for U.S. Senate and U.S. House. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Virginia primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 6 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| U.S. House | 11 | 11 | 0 | 53 | 22 | 6 | 3 | 40.9% | 2 | 22.2% | ||||
| Totals | 12 | 12 | 2 | 59 | 24 | 6 | 4 | 41.7% | 2 | 20.0% | ||||
U.S. Senate
| Virginia Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 6 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2020 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2018 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 0 | 5 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
U.S. House
| Virginia U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 11 | 11 | 2 | 53 | 22 | 6 | 3 | 40.9% | 2 | 22.2% | ||||
| 2022 | 11 | 11 | 0 | 33 | 16[25] | 1 | 4 | 31.3% | 2 | 18.2% | ||||
| 2020 | 11 | 11 | 0 | 31 | 15[26] | 4 | 2 | 40.0% | 2 | 18.2% | ||||
| 2018 | 11 | 11 | 2 | 37 | 17[27] | 6 | 3 | 52.9% | 2 | 22.2% | ||||
| 2016 | 11 | 11 | 2 | 29 | 20[28] | 1 | 4 | 25.0% | 2 | 22.2% | ||||
| 2014 | 11 | 11 | 2 | 32 | 20[29] | 1 | 3 | 20.0% | 2 | 22.2% | ||||
Washington
Washington's primary filing deadline was on May 10, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Washington primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| U.S. Senate | 1 | 1 | 0 | 11 | 1 | 1 | 100.0% | 1 | 100.0% | |||||
| U.S. House | 10 | 10 | 0 | 62 | 10 | 10 | 100.0% | 8 | 100.0% | |||||
| State executives | 9 | 9 | 4 | 63 | 9 | 9 | 100.0% | 5 | 100.0% | |||||
| State legislature | 123 | 123 | 26 | 283 | 123 | 43 | 35.0% | 24 | 24.7% | |||||
| Totals | 143 | 143 | 32 | 419 | 143 | 63 | 44.1% | 38 | 34.2% | |||||
U.S. Senate
| Washington U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| 2024 | 1 | 1 | 0 | 11 | 1 | 1 | 100.0% | 1 | 100.0% | |||||
| 2022 | 1 | 1 | 0 | 18 | 1 | 1 | 100.0% | 1 | 100.0% | |||||
| 2018 | 1 | 1 | 0 | 29 | 1 | 1 | 100.0% | 1 | 100.0% | |||||
| 2016 | 1 | 1 | 0 | 17 | 1 | 1 | 100.0% | 1 | 100.0% | |||||
U.S. House
| Washington U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| 2024 | 10 | 10 | 2 | 62 | 10 | 10 | 100.0% | 8 | 100.0% | |||||
| 2022 | 10 | 10 | 0 | 68 | 10 | 10 | 100.0% | 10 | 100.0% | |||||
| 2020 | 10 | 10 | 1 | 73 | 10 | 10 | 100.0% | 9 | 100.0% | |||||
| 2018 | 10 | 10 | 1 | 49 | 10 | 8 | 80.0% | 7 | 77.8% | |||||
| 2016 | 10 | 10 | 1 | 56 | 10 | 10 | 100.0% | 9 | 100.0% | |||||
| 2014 | 10 | 10 | 1 | 49 | 10 | 10 | 100.0% | 9 | 100.0% | |||||
State executives
| Washington state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| 2024 | 9 | 9 | 4 | 63 | 9 | 7 | 77.8% | 5 | 100.0% | |||||
| 2022 | – | – | – | – | – | – | – | – | – | |||||
| 2020 | 9 | 9 | 1 | 76 | 9 | 8 | 88.9% | 7 | 87.5% | |||||
| 2018 | – | – | – | – | – | – | – | – | – | |||||
| 2016 | 9 | 9 | 5 | 56 | 9 | 8 | 88.9% | 3 | 75.0% | |||||
State legislature
| Washington state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested top-two primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | |||||
| 2024 | 123 | 123 | 26 | 283 | 123 | 43 | 35.0% | 24 | 24.7% | |||||
| 2022 | 122 | 122 | 26 | 293 | 122 | 51 | 41.8% | 31 | 32.3% | |||||
| 2020 | 123 | 123 | 16 | 308 | 123 | 52 | 42.3% | 38 | 35.5% | |||||
| 2018 | 123 | 123 | 17 | 301 | 123 | 47 | 38.2% | 34 | 32.1% | |||||
| 2016 | 124 | 124 | 21 | 302 | 124 | 46 | 37.1% | 32 | 31.1% | |||||
| 2014 | 123 | 123 | 12 | 267 | 123 | 29 | 23.6% | 23 | 20.7% | |||||
West Virginia
West Virginia's primary filing deadline was on January 27, 2024. Candidates filed to run for U.S. Senate, U.S. House, state executive offices, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| West Virginia primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 1 | 10 | 2 | 1 | 1 | 100.0% | 0 | 0.0% | ||||
| U.S. House | 2 | 2 | 1 | 10 | 4 | 1 | 2 | 75.0% | 1 | 100.0% | ||||
| State executives | 6 | 6 | 5 | 26 | 12 | 1 | 5 | 50.0% | 1 | 100.0% | ||||
| State legislature | 117 | 117 | 19 | 244 | 234 | 4 | 45 | 20.9% | 30 | 30.6% | ||||
| Totals | 126 | 126 | 26 | 290 | 252 | 7 | 53 | 23.8% | 32 | 32.0% | ||||
U.S. Senate
| West Virginia U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 1 | 10 | 2 | 1 | 1 | 100.0% | 0 | 0.0% | ||||
| 2020 | 1 | 1 | 0 | 6 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 7 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2014 | 1 | 1 | 1 | 6 | 2 | 1 | 1 | 100.0% | 0 | 0.0% | ||||
U.S. House
| West Virginia U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 2 | 2 | 1 | 10 | 4 | 1 | 2 | 75.0% | 1 | 100.0% | ||||
| 2022 | 2 | 2 | 0 | 13 | 4 | 1 | 2 | 75.0% | 3 | 100.0% | ||||
| 2020 | 3 | 3 | 0 | 12 | 6 | 2 | 2 | 66.7% | 2 | 66.7% | ||||
| 2018 | 3 | 3 | 1 | 18 | 6 | 3 | 1 | 66.7% | 0 | 0.0% | ||||
| 2016 | 3 | 3 | 0 | 11 | 6 | 1 | 1 | 33.3% | 1 | 33.3% | ||||
| 2014 | 3 | 3 | 1 | 14 | 6 | 2 | 1 | 50.0% | 1 | 50.0% | ||||
State executives
| West Virginia U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 6 | 6 | 5 | 26 | 12 | 1 | 5 | 50.0% | 1 | 100.0% | ||||
| 2020 | 6 | 6 | 0 | 26 | 12 | 3 | 2 | 41.7% | 2 | 33.3% | ||||
| 2016 | 6 | 6 | 2 | 19 | 12 | 3 | 2 | 41.7% | 1 | 25.0% | ||||
State legislature
| West Virginia state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 117 | 117 | 19 | 244 | 234 | 4 | 45 | 20.9% | 30 | 30.6% | ||||
| 2022 | 117 | 117 | 23[30] | 299 | 234 | 18 | 54 | 30.8% | 36 | 36.7% | ||||
| 2020 | 84 | 117 | 24 | 294 | 168 | 19 | 33 | 31.0% | 45 | 48.4% | ||||
| 2018 | 84 | 117 | 18 | 304 | 168 | 23 | 34 | 33.9% | 40 | 40.4% | ||||
| 2016 | 84 | 117 | 25 | 335 | 168 | 31 | 33 | 38.1% | 38 | 40.9% | ||||
| 2014 | 84 | 117 | 11 | 283 | 168 | 20 | 24 | 26.2% | 34 | 32.1% | ||||
Wisconsin
Wisconsin's primary filing deadline was on June 3, 2024. Candidates filed to run for U.S. Senate, U.S. House, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Wisconsin primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| U.S. House | 8 | 8 | 1 | 23 | 16 | 2 | 3 | 31.3% | 0 | 0.0% | ||||
| State legislature | 115 | 115 | 30 | 269 | 230 | 23 | 27 | 21.7% | 28 | 31.5% | ||||
| Totals | 124 | 124 | 31 | 296 | 248 | 25 | 31 | 22.6% | 28 | 28.9% | ||||
U.S. Senate
| Wisconsin U.S. Senate competitiveness, 2016-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2022 | 1 | 1 | 0 | 10 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 6 | 2 | 0 | 1 | 50.0% | 0 | 0.0% | ||||
| 2016 | 1 | 1 | 0 | 3 | 2 | 1 | 0 | 50.0% | 0 | 0.0% | ||||
U.S. House
| Wisconsin U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 8 | 8 | 1 | 23 | 16 | 2 | 3 | 31.3% | 0 | 0.0% | ||||
| 2022 | 8 | 8 | 1 | 22 | 16 | 1 | 5 | 37.5% | 3 | 42.9% | ||||
| 2020 | 8 | 8 | 1 | 23 | 16 | 3 | 3 | 37.5% | 1 | 14.3% | ||||
| 2018 | 8 | 8 | 1 | 25 | 16 | 3 | 3 | 37.5% | 2 | 28.6% | ||||
| 2016 | 8 | 8 | 1 | 23 | 16 | 5 | 3 | 50.0% | 4 | 57.1% | ||||
| 2014 | 8 | 8 | 1 | 27 | 16 | 3 | 5 | 50.0% | 3 | 42.9% | ||||
State legislature
| Wisconsin state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 115 | 115 | 30 | 269 | 230 | 23 | 27 | 21.7% | 28 | 31.5% | ||||
| 2022 | 116 | 116 | 30 | 258 | 232 | 9 | 29 | 16.4% | 9 | 10.5% | ||||
| 2020 | 115 | 115 | 20 | 265 | 230 | 18 | 15 | 14.3% | 9 | 9.5% | ||||
| 2018 | 116 | 116 | 16 | 224 | 232 | 14 | 6 | 8.6% | 4 | 4.0% | ||||
| 2016 | 115 | 115 | 13 | 218 | 230 | 25 | 8 | 14.3% | 8 | 7.8% | ||||
| 2014 | 116 | 116 | 29 | 238 | 232 | 12 | 20 | 13.8% | 3 | 3.4% | ||||
Wyoming
Wyoming's primary filing deadline was on May 31, 2024. Candidates filed to run for U.S. Senate, U.S. House, and the state legislature. The table below shows cumulative primary competitiveness and incumbency statistics by office in this state.
| Wyoming primary competitiveness, 2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| U.S. Senate | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| U.S. House | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| State legislature | 77 | 77 | 16 | 159 | 154 | 0 | 53 | 34.4% | 40 | 65.6% | ||||
| Totals | 79 | 79 | 16 | 166 | 158 | 0 | 55 | 34.8% | 42 | 66.7% | ||||
U.S. Senate
| Wyoming U.S. Senate competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 4 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| 2020 | 1 | 1 | 1 | 16 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2018 | 1 | 1 | 0 | 7 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| 2016 | 1 | 1 | 0 | 9 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
U.S. House
| Wyoming U.S. House competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
| 2022 | 1 | 1 | 0 | 9 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2020 | 1 | 1 | 0 | 5 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2018 | 1 | 1 | 0 | 5 | 2 | 1 | 1 | 100.0% | 1 | 100.0% | ||||
| 2016 | 1 | 1 | 1 | 10 | 2 | 1 | 1 | 100.0% | 0 | N/A | ||||
| 2014 | 1 | 1 | 0 | 3 | 2 | 0 | 1 | 50.0% | 1 | 100.0% | ||||
State legislature
| Wyoming state legislative competitiveness, 2014-2024 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Office | Districts/ offices | Seats | Open seats | Candidates | Possible primaries | Contested Democratic primaries | Contested Republican primaries | % of contested primaries | Incumbents in contested primaries | % of incumbents in contested primaries | ||||
| 2024 | 77 | 77 | 16 | 159 | 154 | 0 | 53 | 34.4% | 40 | 65.6% | ||||
| 2022 | 78 | 78 | 21[31] | 165 | 156 | 2 | 46 | 30.8% | 28 | 49.1% | ||||
| 2020 | 75 | 75 | 15 | 157 | 150 | 6 | 40 | 30.7% | 31 | 51.7% | ||||
| 2018 | 75 | 75 | 10 | 138 | 150 | 2 | 26 | 18.7% | 19 | 29.2% | ||||
| 2016 | 75 | 75 | 20 | 178 | 150 | 2 | 34 | 24.0% | 20 | 36.4% | ||||
| 2014 | 75 | 75 | 11 | 145 | 150 | 3 | 34 | 24.7% | 26 | 40.6% | ||||
See also
- United States Senate elections, 2024
- United States House of Representatives elections, 2024
- State executive official elections, 2024
- State legislative elections, 2024
- Ballotpedia's Candidate Filing Analysis Hub, 2024
Footnotes
- ↑This analysis defines a seat as open if the incumbent did not file to run for re-election or filed to run for re-election but withdrew before the primary filing deadline.
- ↑A primary is contested when more candidates file to run than nominations available, meaning at least one candidate must lose.
- ↑State legislative elections in Nebraska's nonpartisan Senate were not included in this analysis.
- ↑State legislative elections in Nebraska's nonpartisan Senate were not included in this analysis.
- ↑State legislative elections in Nebraska's nonpartisan Senate were not included in this analysis.
- ↑In top-two primaries, all candidates, regardless of party affiliation, are counted. If a convention is the sole means of nomination, only the candidate(s) advancing beyond the convention are counted.
- ↑If an incumbent withdrew from or did not participate in a primary, but later chose to run for re-election as a minor party or independent candidate, his or her seat would not be counted as open.
- ↑If a convention is the sole means of nomination, only the candidate(s) advancing beyond the convention are counted.
- ↑For example, if there are 50 districts up for election, there would be 100 possible primaries. If Democrats in five districts and Republicans in two districts chose to nominate candidates via a convention, the number of possible primaries would decrease to 93
((50 * 2) - 7). - ↑If conventions are used, but could still result in a primary, that is included as a possible primary even if the convention did not proceed to a primary. For example, in some states a candidate can advance to the general election from a convention outright if he or she receives a certain percentage of the vote. If that percentage is not met, the race may proceed to a primary.
- ↑Incumbents participating in contested nominating conventions are not included in this total. If the incumbent participates in a convention and advances to a contested primary, he or she would be included. This figure include all incumbents whose name appear on a contested primary ballot even if that incumbent passed away or unofficially withdrew before the election.
- ↑Incumbents seeking re-election can typically be calculated by subtracting the number of open seats from the number of total seats.
- ↑Ballotpedia's coverage scope did not include any state executive elections in Hawaii in 2016.
- ↑All state executive offices in Indiana up for election in 2022 were nominated solely via conventions and excluded from this analysis.
- ↑All state executive offices in Indiana up for election in 2018 were nominated solely via conventions and excluded from this analysis.
- ↑All state executive offices in Indiana up for election in 2014 were nominated solely via conventions and excluded from this analysis.
- ↑Though incumbent Rep. Nima Kulkarni won in the Democratic primary for House District 40, the Kentucky Supreme Court struck down her primary results and found that Kulkarni was a disqualified candidate after a lawsuit alleged one of two people whose signature was on her nomination paperwork was a Republican when it was signed. While Kulkarni appeared on the ballot, Ballotpedia counted House District 40 as an open seat because the Kentucky Supreme Court deemed her candidacy invalid.
- ↑Though incumbent Rep. Nima Kulkarni won in the Democratic primary for House District 40, the Kentucky Supreme Court struck down her primary results and found that Kulkarni was a disqualified candidate after a lawsuit alleged one of two people whose signature was on her nomination paperwork was a Republican when it was signed. While Kulkarni appeared on the ballot, Ballotpedia counted House District 40 as an open seat because the Kentucky Supreme Court deemed her candidacy invalid.
- ↑19.019.119.2Louisiana's general election statistics are recorded as primary figures for the purpose of this analysis.
- ↑All state executive offices in Michigan up for election in 2024 were nominated solely via conventions and excluded from this analysis.
- ↑All state executive offices in Michigan up for election in 2024 were nominated solely via conventions and excluded from this analysis.
- ↑All state executive offices in Michigan up for election in 2020 were nominated solely via conventions and excluded from this analysis.
- ↑Ballotpedia's coverage scope did not include any state executive elections in Michigan in 2016.
- ↑Ballotpedia's coverage scope did not include any state executive elections in Nevada in 2016.
- ↑Six district parties chose to hold nominating conventions or caucuses instead of primaries. Those are not included in the total for number of possible primaries.
- ↑Seven district parties chose to hold nominating conventions or caucuses instead of primaries. Those are not included in the total for number of possible primaries.
- ↑Five district parties chose to hold nominating conventions or caucuses instead of primaries. Those are not included in the total for number of possible primaries.
- ↑Two district parties chose to hold nominating conventions or caucuses instead of primaries. Those are not included in the total number of possible primaries.
- ↑Two district parties chose to hold nominating conventions or caucuses instead of primaries. Those are not included in the total number of possible primaries.
- ↑There were four open seats in the Senate. Of the 19 open seats in the House, nine were in districts that did not exist before the 2022 election cycle. Three open seats were in districts that, before 2022, contained multiple seats. The remaining seven open seats were in districts that had been single-member districts before 2022.
- ↑Includes three seats created during theredistricting process after the 2020 census.
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