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State legislative elections, 2023

From Ballotpedia
2023 State
Legislative Elections
Ballotpedia Election Coverage Badge.png
2023 elections
LouisianaMississippi
New JerseyVirginia
2023 special elections


Eight of the country's 99 state legislative chambers held regularly-scheduled elections in 2023. Elections in those eight chambers represented 578 of the country's 7,386 state legislative seats (7.8%). This was the most seats up for election in an odd-numbered year since 2011.

General elections inMississippi,New Jersey, andVirginia took place onNovember 7, 2023. General elections inLouisiana took place onNovember 18, 2023.

  • Democrats gained one state legislative chamber by winning partisan control of theVirginia House of Delegates.Democrats maintained control of thestate Senate. Virginia's trifecta status remained divided.
  • Republicans were guaranteed simple majorities in both Mississippi's House and Senate and Louisiana's House and Senate due to the number of districts where candidates from only one political party ran.
  • Democrats maintained partisan control of both chambers of the New Jersey state legislature.

As a result, nationally, Republicans were the majority in 56 chambers, down from 57 before the election. Democrats were the majority in 41, up from 40. (The Alaska House and Senate were organized under multipartisan, power-sharing coalitions.)

Highlights:

  • Heading into the election, Democrats controlled three of the chambers holding elections, while Republicans controlled five.
  • Republicans were guaranteed simple majorities in both Mississippi'sHouse andSenate and Louisiana'sHouse andSenate.
  • Ballotpedia identified the VirginiaHouse (Republican-controlled) andSenate (Democratic-controlled) as battlegrounds with majorities at stake.
  • 138 seats wereopen (23.9%), the largest number and percentage since 2011.
  • 115 incumbents facedcontested primaries (26.0%), the second-largest number and percentage since 2011.
  • 259 seats were contested byboth major parties (44.8%), the second-largest number since 2011.

  • In 2021, three state legislative chambers — the New Jersey Senate, the New Jersey General Assembly, and the Virginia House — held elections. The Virginia House changed from Democratic to Republican control, while Democrats maintained control in New Jersey. Seven state legislative chambers — the Louisiana House, the Louisiana Senate, the Mississippi House, the Mississippi Senate, the New Jersey General Assembly, the Virginia House, and the Virginia Senate — held elections in 2019. The Virginia House and Senate changed from Republican to Democratic control, while Democrats maintained control in New Jersey and Republicans in Louisiana and Mississippi.

    Regarding state legislativeseats, specifically,partisan composition of the 578 seats up for election changed by two percentage points.[1]

    • Democrats had a net gain ofsix seats, representing 1.0% of the 578 seats.
    • Republicans had a net loss ofthree seats, representing 0.5% of the 578 seats.
    • Independents and minor party officeholders had a net loss ofthree seats, representing 0.5% of the 578 seats.

    States also heldspecial state legislative elections in 2023 to fill vacant seats.


    On this page, you will find:

    Offices on the ballot in 2023

    In 2023, there were eight state legislative chambers — five Republican and three Democratic — on the ballot. The table below highlights the partisan balance of those eight chambers before and after the election.

    State legislative elections, 2023
    StateSeats upPre-election controlPost-election control
    LouisianaHouse: 105
    Senate: 39
    Ends.pngRepublican
    Ends.pngRepublican
    Ends.pngRepublican
    Ends.pngRepublican
    MississippiHouse: 122
    Senate: 52
    Ends.pngRepublican
    Ends.pngRepublican
    Ends.pngRepublican
    Ends.pngRepublican
    New JerseyHouse: 80
    Senate: 40
    Electiondot.pngDemocratic
    Electiondot.pngDemocratic
    Electiondot.pngDemocratic
    Electiondot.pngDemocratic
    VirginiaHouse: 100
    Senate: 40
    Ends.pngRepublican
    Electiondot.pngDemocratic
    Electiondot.pngDemocratic
    Electiondot.pngDemocratic

    Partisan balance

    See also:Partisan composition of state legislatures

    As ofNovember 26th, 2025, Republicans controlled55.29% of all state legislative seats nationally, while Democrats held43.53%. Republicans held a majority in57 chambers, and Democrats held the majority in39 chambers.Two chambers (Alaska House andAlaska Senate) were organized under multipartisan, power-sharing coalitions.One chamber (Minnesota House of Representatives) was split evenly between both parties.

    Partisan balance of all 7,386 state legislative seats
    Legislative chamberDemocratic PartyRepublican PartyGrey.png OtherVacant
    State senates8291,118620
    State houses2,3862,9662041
    Total:3,215

    4,084

    26

    61

    Trifectas

    See also:State government trifectas

    State government trifecta is a term to describe single-party government, when one political party holds the governorship and majorities in both chambers of the state legislature.

    As of November 26, 2025, there are 23 Republican trifectas, 15 Democratic trifectas, and 12 divided governments where neither party holds trifecta control.

    The table below shows the trifecta statuses in the four states that held state legislative elections in 2023. Bolded offices or chambers were up for election.

    Trifecta statuses and state legislative elections, 2023
    StateTrifectaGov.SenateHouse
    LouisianaDividedDRR
    MississippiRepublicanRRR
    New JerseyDemocraticDDD
    VirginiaDividedRDR


    Elections by state

    Louisiana

    Louisiana's state legislators serve four-year terms. Both chambers have term limits which prevent a state legislator from serving for more than three terms, or twelve years, in a particular chamber. Louisiana legislators assume office at noon on the second Monday in January after their election.[2][3]

    State Senate

    See also:Louisiana State Senate elections, 2023

    Louisiana State Senate Current Party Control

    PartyAs of November 2025
        Democratic Party10
        Republican Party28
        Other0
        Vacancies1
    Total 39

    State House

    See also:Louisiana House of Representatives elections, 2023

    Louisiana House of Representatives Current Party Control

    PartyAs of November 2025
        Democratic Party31
        Republican Party73
        Independent0
        Vacancies1
    Total 105

    Mississippi

    Mississippi's state legislators serve four-year terms. Mississippi legislators assume office the Tuesday after the first Monday of January.[4]

    State Senate

    See also:Mississippi State Senate elections, 2023

    Mississippi State Senate Current Party Control

    PartyAs of November 2025
        Democratic Party14
        Republican Party36
        Other0
        Vacancies2
    Total 52

    State House

    See also:Mississippi House of Representatives elections, 2023

    Mississippi House of Representatives Current Party Control

    PartyAs of November 2025
        Democratic Party39
        Republican Party79
        Independent3
        Vacancies1
    Total 122

    New Jersey

    New Jersey's state senators serve four-year terms, except in the first term of a new decade, which only lasts for two years. Assembly members are elected to a two-year term. New Jersey legislators assume office at noon on the second Tuesday in January following the election.[5]

    State Senate

    See also:New Jersey State Senate elections, 2023

    New Jersey State Senate Current Party Control

    PartyAs of November 2025
        Democratic Party25
        Republican Party15
        Other0
        Vacancies0
    Total 40

    State House

    See also:New Jersey General Assembly elections, 2023

    New Jersey General Assembly Current Party Control

    Partisan composition, New Jersey General Assembly
    as of November 2025
    PartyMembers
    Democratic52
    Republican28
    Other0
    Vacancies0
    Total80

    Virginia

    Virginia's state senators are elected to a four-year term and state representatives are elected to a two-year term. Virginia legislators assume office the second Wednesday in January after the election.[6][7]

    State Senate

    See also:Virginia State Senate elections, 2023

    Virginia State Senate Current Party Control

    PartyAs of November 2025
        Democratic Party21
        Republican Party19
        Other0
        Vacancies0
    Total 40

    State House

    See also:Virginia House of Delegates elections, 2023

    Virginia House of Delegates Current Party Control

    Partisan composition, Virginia House of Delegates
    As of November 2025
    PartyMembers
    Democratic51
    Republican48
    Other0
    Vacancies1
    Total100

    Incumbents defeated

    See also:Incumbents defeated in state legislative elections, 2023

    General elections

    In state legislative general elections,13 incumbents lost to challengers,3.1% of incumbents running for re-election. This was similar to the percentage of incumbents defeated in 2019 (3.4%), the last time all four states held elections.

    An average of 4.3% of incumbents were defeated in odd-year general elections from 2011 to 2023, while an average of 6% of incumbents were defeated in even-year general elections from 2010 to 2022.

    In 2023 general elections:

  • Two Democratic incumbents lost, 1% of the 178 Democratic incumbents who ran and 2% of the 93 contested Democratic incumbents.
  • Nine Republican incumbents lost, 4% of the 243 Republican incumbents who ran and 9% of the 100 contested Democratic incumbents.
  • Two minor party or independent incumbents lost, 50% of the four minor party or independent incumbents who ran and 66.7% of the three contested minor party or independent incumbents.
  • The total number of incumbents defeated in general elections—13—is fewer than in 2019 (14), the last time all four states held elections, representing a 7% decrease.
  • The chart below shows a partisan breakdown of incumbents defeated in general elections from 2011 to 2023.

    Click [show] on the header below to see a full list of incumbents defeated in general elections by state. Winners marked with (i) were incumbents from the same chamber.

    List of incumbents defeated in state legislative general elections, 2023
    IncumbentPartyChamberYear incumbent took officeWinning candidate
    Louisiana
    Mack CormierElectiondot.pngDemocraticLouisiana House of Representatives2020Republican PartyJacob Braud
    Mary DuBuissonEnds.pngRepublicanLouisiana House of Representatives2018Republican PartyBrian Glorioso
    Mississippi
    Kelvin ButlerIndependentIndependentMississippi State Senate2021Democratic PartyGary Brumfield
    New Jersey
    Edward R. DurrEnds.pngRepublicanNew Jersey State Senate2022Democratic PartyJohn Burzichelli
    Kim EulnerEnds.pngRepublicanNew Jersey General Assembly2022Democratic PartyMargie Donlon
    Democratic PartyLuanne Peterpaul
    Bethanne McCarthy PatrickEnds.pngRepublicanNew Jersey General Assembly2022Democratic PartyHeather Simmons
    Democratic PartyDave Bailey Jr.
    Marilyn PipernoEnds.pngRepublicanNew Jersey General Assembly2022Democratic PartyMargie Donlon
    Democratic PartyLuanne Peterpaul
    Edward Thomson IIIEnds.pngRepublicanNew Jersey General Assembly2017Republican PartySean Kean (i)
    Democratic PartyAvi Schnall
    Brandon UmbaEnds.pngRepublicanNew Jersey General Assembly2022Republican PartyMichael Torrissi Jr. (i)
    Democratic PartyAndrea Katz
    Virginia
    Siobhan DunnavantEnds.pngRepublicanVirginia State Senate2016Democratic PartySchuyler VanValkenburg
    Matt FarissIndependentIndependentVirginia House of Delegates2012Republican PartyEric Zehr
    Karen GreenhalghEnds.pngRepublicanVirginia House of Delegates2022Democratic PartyMichael Feggans
    T. Monty MasonElectiondot.pngDemocraticVirginia State Senate2016Republican PartyJ.D. Diggs

    Primaries

    In state legislative primaries,16 incumbents lost to challengers,3.6% of incumbents running for re-election. This is the second-largest number of incumbents defeated, tied with 16 in 2015, since Ballotpedia began gathering data in 2011.

    An average of 2.5% of incumbents were defeated in odd-year primaries from 2011 to 2023, while an average of 3.3% of incumbents were defeated in even-year primaries from 2010 to 2022.

    In 2023 primaries:

  • Six Democratic incumbents lost, 3.2% of the 187 Democratic incumbents who ran and 12.2% of the 49 contested Democratic incumbents.
  • Ten Republican incumbents lost, 4.0% of the 252 Republican incumbents who ran and 15.2% of the 66 contested Republican incumbents.
  • The total number of incumbents who lost to primary challengers—16—is down from 17 in 2019, the last time all four states held elections, representing a 6% decrease.
  • The chart below shows a partisan breakdown of incumbent defeats from 2011 to 2023.

    Click [show] below to see a full list of incumbents defeated in primaries by state. Winners marked with (i) were incumbents from the same chamber.

    Incumbents defeated in state legislative primaries, 2023
    IncumbentPartyChamberYear incumbent took officeWinning candidate
    Louisiana
    Jonathan GoudeauEnds.pngRepublicanLouisiana House of Representatives2020Troy Hebert
    Robert MillsEnds.pngRepublicanLouisiana State Senate2020Adam Bass
    Mississippi
    Nick BainEnds.pngRepublicanMississippi House of Representatives2012Brad Mattox
    Dale GoodinEnds.pngRepublicanMississippi House of Representatives2020Elliot Burch
    Doug McLeodEnds.pngRepublicanMississippi House of Representatives2012Steve Lott
    Philip MoranEnds.pngRepublicanMississippi State Senate2012Philman Ladner
    Rufus StraughterElectiondot.pngDemocraticMississippi House of Representatives1996Timaka James-Jones
    Perry Van BaileyEnds.pngRepublicanMississippi House of Representatives2023Andrew Stepp
    Brady WilliamsonEnds.pngRepublicanMississippi House of Representatives2020Josh Hawkins
    New Jersey
    Nia GillElectiondot.pngDemocraticNew Jersey Senate2002Richard Codey (i)
    Virginia
    George BarkerElectiondot.pngDemocraticVirginia State Senate2008Stella Pekarsky
    John Chapman PetersenElectiondot.pngDemocraticVirginia State Senate2008Saddam Salim
    Amanda ChaseEnds.pngRepublicanVirginia State Senate2016Glen Sturtevant
    Marie MarchEnds.pngRepublicanVirginia House of Delegates2022Wren Williams (i)
    Joseph MorrisseyElectiondot.pngDemocraticVirginia State Senate2020Lashrecse Aird
    Lionell SpruillElectiondot.pngDemocraticVirginia State Senate2016Louise Lucas (i)


    State legislative special elections

    See also:State legislative special elections, 2023

    In 2023, 53state legislative special elections were scheduled in 21 states. Between 2011 and 2022, an average of 73 special elections took place each year. Unlike regularly scheduled elections, special elections take place throughout the year often

    In 2023, special elections for state legislative positions were held for the following reasons:

    • 10 due to appointment, election, or the seeking of election to another position
    • 32 due to resignation
    • 9 due to the death of the incumbent
    • 2 due to removal from office

    The partisan breakdown for the special elections was as follows:

    Click "Show more" to view a list of all special state legislative elections in 2023 by date.

    Show more


    2023 state legislative special elections
    OfficeFormer incumbentFiling deadlinePrimary election dateGeneral election date
    Georgia House District 7David Ralston (R)December 7, 2022N/AJanuary 3, 2023
    Mississippi House District 23Charles Jim Beckett (R)November 21, 2022N/AJanuary 10, 2023
    Virginia House District 24Ronnie Campbell (R)December 22, 2022N/A[8]January 10, 2023
    Virginia House District 35Mark Keam (D)November 14, 2022N/A[8]January 10, 2023
    Virginia State Senate District 7Jennifer Kiggans (R)November 21, 2022N/A[8]January 10, 2023
    Georgia State Senate District 11Dean Burke (R)December 30, 2022N/AJanuary 31, 2023
    Georgia House District 172Sam Watson (R)December 30, 2022N/AJanuary 31, 2023
    Georgia House District 119Danny Rampey (R)January 5, 2023N/AJanuary 31, 2023
    Pennsylvania State Senate District 27John Gordner (R)December 12, 2022N/AJanuary 31, 2023
    Pennsylvania House District 32Anthony DeLuca (D)December 19, 2022N/AFebruary 7, 2023
    Pennsylvania House District 34Summer Lee (D)December 19, 2022N/AFebruary 7, 2023
    Pennsylvania House District 35Austin Davis (D)December 19, 2022N/AFebruary 7, 2023
    Kentucky State Senate District 19Morgan McGarvey (D)January 3, 2023N/AFebruary 21, 2023
    New Hampshire House Strafford District 8Donna Ellis (D)N/A[9]N/AFebruary 21, 2023
    Connecticut House of Representatives District 6Edwin Vargas (D)January 23, 2023
    February 14, 2023 (write-in)
    N/AFebruary 28, 2023
    Connecticut House of Representatives District 100Quentin Williams (D)January 23, 2023
    February 14, 2023 (write-in)
    N/AFebruary 28, 2023
    Connecticut House of Representatives District 148Dan Fox (D)January 23, 2023
    February 14, 2023 (write-in)
    N/AFebruary 28, 2023
    Tennessee House District 86Barbara Cooper (D)December 15, 2022January 24, 2023March 14, 2023
    Georgia House District 75Mike Glanton (D)February 3, 2023N/AMarch 21, 2023
    Louisiana House District 93Royce Duplessis (D)January 13, 2023February 18, 2023March 25, 2023
    Virginia State Senate District 9Jennifer McClellan (D)February 27, 2023N/AMarch 28, 2023
    Wisconsin State Senate District 8Alberta Darling (R)January 3, 2023February 21, 2023April 4, 2023
    Florida House District 24Joe Harding (R)January 10, 2023March 7, 2023May 16, 2023
    Georgia House District 68Tish Naghise (D)April 5, 2023N/AMay 16, 2023
    Kentucky State Senate District 28Ralph Alvarado (R)March 28, 2023
    April 18, 2023 (write-in)
    N/AMay 16, 2023
    New Hampshire House Hillsborough District 3Stacie-Marie Laughton (D)January 27, 2023March 28, 2023May 16, 2023
    Pennsylvania House District 108Lynda Schlegel Culver (R)March 27, 2023N/AMay 16, 2023
    Pennsylvania House District 163Michael Zabel (D)March 27, 2023N/AMay 16, 2023
    Massachusetts House District Suffolk 9Jon Santiago (D)March 21, 2023May 2, 2023May 30, 2023
    Massachusetts House District Suffolk 10Edward Coppinger (D)March 21, 2023May 2, 2023May 30, 2023
    Maine House District 45Clinton Collamore, Sr. (D)February 15, 2023N/AJune 13, 2023
    Wisconsin Assembly District 24Daniel Knodl (R)May 23, 2023June 20, 2023July 18, 2023
    Tennessee House District 52Justin Jones (D)May 4, 2023June 15, 2023August 3, 2023
    Tennessee House District 86Justin Pearson (D)May 4, 2023June 15, 2023August 3, 2023
    Tennessee House District 3Scotty Campbell (R)May 11, 2023June 22, 2023August 3, 2023
    New Hampshire House Grafton District 16Joshua Adjutant (D)June 23, 2023N/AAugust 22, 2023
    Virginia House District 6Jeffrey Campbell (R)August 9, 2023N/AAugust 29, 2023
    New York Assembly District 27Daniel Rosenthal (D)N/AN/ASeptember 12, 2023
    Tennessee House District 51Bill Beck (D)June 22, 2023August 3, 2023September 14, 2023
    New Hampshire House Rockingham District 1Benjamin T. Bartlett IV (R)September 9, 2023August 1, 2023September 19, 2023
    Pennsylvania House District 21Sara Innamorato (D)July 24, 2023N/ASeptember 19, 2023
    Alabama House 55Fred Plump (D)July 25, 2023 (major party)
    September 26, 2023 (minor party and independent)
    N/ASeptember 26, 2023[10]
    Kentucky House of Representatives District 93Lamin Swann (D)September 19, 2023
    October 10, 2023 (write-in)
    N/ANovember 7, 2023
    Maine House of Representatives District 50Sean Paulhus (D)September 1, 2023
    September 6, 2023 (write-in)
    N/ANovember 7, 2023
    Massachusetts State Senate Worcester & Hampshire DistrictAnne Gobi (D)August 29, 2023October 10, 2023November 7, 2023
    South Carolina State Senate District 42Marlon Kimpson (D)July 15, 2023September 5, 2023November 7, 2023
    Rhode Island State Senate District 1Maryellen Goodwin (D)July 28, 2023September 5, 2023November 7, 2023
    Texas House District 2Bryan Slaton (R)September 6, 2023N/ANovember 7, 2023
    New Hampshire House Hillsborough District 3David Cote (D)July 28, 2023September 19, 2023November 7, 2023
    Florida House District 118Juan Fernandez-Barquin (R)August 10, 2023October 3, 2023December 5, 2023
    Minnesota House District 52BRuth Richardson (D)September 19, 2023November 16, 2023December 5, 2023
    Oklahoma Senate District 32John Montgomery (R)August 2, 2023October 10, 2023December 12, 2023
    Delaware House District 37Ruth Briggs King (R)November 27, 2023N/ADecember 21, 2023

    Impact of term limits

    See also:Impact of term limits on state legislative elections in 2023

    Of the eight state legislative chambers that held elections in 2023, two of them — one senate chamber and one house chamber — included incumbents who were unable to run for re-election due toterm limits. Louisiana was the only state with term limits that had a general election in 2023. In the two legislative chambers affected by term limits in 2023, 144 seats were up for election.

    In 2023,22 state legislators — seven state senators and 15 state representatives — were term-limited inLouisiana. This represented3.8% of the 578 total seats up for election in November 2023.[11]

    Sixteen Republicans and six Democrats were term-limited in 2023. In odd-numbered election years between 2011 and 2021, Democrats averaged 12 term-limited legislators, while Republicans averaged 15 term-limited legislators.

    Electoral competitiveness

    See also:Annual State Legislative Competitiveness Report: Vol. 13, 2023

    Ballotpedia's13th Annual State Legislative Competitiveness Report analyzed all578 state legislative seats that were up for election in November 2023 in Louisiana, Mississippi, New Jersey, and Virginia.

    In 2023, the overall State Legislative Competitiveness Index increased from a decade high 30.8 in 2019 to 31.6. This analysis only includes odd years when all four states held elections (2011, 2015, 2019, and 2023). The data show that 138 (24%) legislative seats up for election were open. This was the largest number and percentage of open seats since Ballotpedia began gathering data in 2011. 

    Of the four states holding elections this year (and previously together in 2011, 2015, and 2019), New Jersey had the highest competitiveness index in all four cycles.

    This year's index score was higher than in 2019 because there were more head-to-head matchups between Republican and Democratic candidates. Additionally, the number of open seat contests was the largest since at least 2011.

    Key findings of this report include:

  • 138 seats wereopen (23.9%), the largest number and percentage since 2011.
  • 115 incumbents facedcontested primaries (26.0%), the second-largest number and percentage since 2011.
  • 259 seats were contested byboth major parties (44.8%), the second-largest number since 2011.

  • Nationwide State Legislative Competitiveness Index, 2023
    ChamberOpen seatsIncs. in contested primariesMajor party competitionCompetitiveness Index
    House25.3%24.3%42.0%30.5
    Senate20.5%29.7%51.5%33.9
    Total23.9%26.0%44.8%31.6

    The graphic below combines these figures for every election cycle from 2011 to 2023, showing the change in competitiveness, and how each criterion affects the overall competitiveness indices, over time.

    Open seats

    See also:Open seats in state legislative elections, 2023

    There were578 state legislative seats up for election in November 2023 in four states. Of that total, there were138 open seats, guaranteeing at least24% of all seats would be won by newcomers. This was the largest number and percentage of open seats since Ballotpedia began gathering data in 2011.

    An open seat is one where no incumbent filed to run, meaning it is guaranteed to be won by a newcomer. Learn more about theterms and methodologies used in this analysis.

    Ballotpedia uses the number and percentage of open seats to help determine the overall competitiveness of an election cycle. A greater number of open seats guarantees more newcomers entering legislatures and typically results in more candidates running for office. A smaller number of open seats guarantees fewer newcomers and typically results in fewer candidates running for office.

    In 2023:

  • There were62 open Democratic seats, those most recently held by Democrats at the time of filing.
  • There were74 open Republican seats, those most recently held by Republicans at the time of filing.
  • There weretwo other open seats. This includes those most recently held by minor party or independent officeholders at the time of filing.
  • The total number of open seats—138—was the highest since Ballotpedia began gathering data in 2011, representing a 31% increase from 2019, which was the last time all four states held elections.


  • Open state legislative seats, 2023
    ChamberSeats
    DemocraticRepublicanOtherTotal
    #%
    House4074556210325.3%
    Senate171171803520.5%
    Total5786274213823.9%

    The chart below shows a breakdown of open seats from 2011 to 2023. The "Other" value includes seats left open by minor party and independent officeholders.

    Contested primaries

    See also:Contested state legislative primaries, 2023

    There were538 state legislative districts up for election nationwide, creating877 possible primaries. Of that total, there were204 contested primaries, meaning23% of all primaries were contested. This was lower than in 2019 (25%), the last time all four states held elections.

    In 2023:

  • There were62 contested Democratic primaries, representing 16% of all possible Democratic primaries and a 7% decrease from 2019.
  • There were66 contested Republican primaries, representing 20% of all possible Republican primaries and an 18% increase from 2019.
  • There were76 contested top-two/four primaries, representing 53% of all possible top-two/four primaries and a 17% decrease from 2019.
  • The total number of contested primaries—204—was down from 2019 (215), the last time all four states held elections, representing a 5% decrease.


  • Contested state legislative primaries, 2023
    ChamberDistricts
    DemocraticRepublicanTop-two/fourTotal
    #%#%#%#%
    House3673513.4%4520.5%5754.3%13723.3%
    Senate1712720.5%2117.6%1948.7%6723.1%
    Total5386215.7%6619.5%7652.8%20423.3%

    The chart below shows a breakdown of contested primaries from 2011 to 2023.

    Incumbents in contested primaries

    See also:State legislative incumbents in contested primaries, 2023

    There were578 state legislative seats up for election in November 2023 in four states. Overall, 443 incumbents filed for re-election and were running at the time of their respective primaries. Of that total,115 incumbents faced contested primaries, representing26% of all incumbents who filed for re-election. This is the second-largest number and percentage of incumbents running in contested primaries in an odd year since Ballotpedia began gathering data in 2011.

    A primary is contested when there are more candidates running than nominations available. When this occurs, and an incumbent is present, it means the incumbent could possibly lose the primary. Learn more about theterms andmethodologies used in this analysis.

    Ballotpedia uses the number and percentage of incumbents in contested primaries to help determine the overall competitiveness of an election cycle. A larger number of contested primaries indicates more opportunities for voters to elect a non-incumbent to office. A smaller number indicates fewer of those opportunities.

    In 2023:

  • There were49 Democratic incumbents in contested primaries, representing 26% of all Democratic incumbents who filed for re-election, a 28% decrease from 2019.
  • There were66 Republican incumbents in contested primaries, representing 26% of all Republican incumbents who filed for re-election, an 18% increase from 2019.
  • The total number of incumbents in contested primaries—115—was lower than in 2019 (125), the last time all four states held elections, representing an 8% decrease.
  • In odd years from 2011 to 2023, an average of 21.0% of incumbents were in contested primaries, compared to the average of 21.7% ineven years between 2010 and 2022.
  • Mississippi had the most incumbents in contested primaries with 42, followed by Louisiana (39), New Jersey (17), and Virginia (17). In 2019, Mississippi had the most incumbents in contested primaries with 47, followed by Louisiana (39), New Jersey (25), and Virginia (14).


  • State legislative incumbents in contested primaries, 2023
    ChamberSeats
    DemocraticRepublicanTotal[12]
    FiledCont.%FiledCont.%FiledCont.%
    House4071262721.4%1764726.7%3057424.3%
    Senate171612236.1%761925.0%1384129.7%
    Total5781874926.2%2526626.2%44311526.0%

    The chart below shows a breakdown of incumbents in contested primaries from 2011 to 2023.

    Major party competition

    See also:Major party competition in state legislative elections, 2023

    There were578 state legislative seats up for election in November 2023 in four states. Of that total,319 (55%) were uncontested and had no major party competition. The remaining 259 (45%) were contested by both major parties. This was the second-largest number of seats with no major party competition in an odd year since Ballotpedia began gathering data in 2011.

    A seat has major party competition when candidates from both major parties are on the general election ballot. When only one major party is running for a seat, it has no major party competition and is effectively guaranteed to the major party candidate on the ballot. Learn more about theterms andmethodologies used in this analysis.

    Ballotpedia uses the level of major party competition to help determine the overall competitiveness of an election cycle. A larger number of seats without major party competition indicates fewer options on the ballot. A smaller number indicates more options.

    In 2023:

  • Democrats were guaranteed to win 117 seats (20%) that lacked Republican competition, an 18% decrease from 2019.
  • Republicans were guaranteed to win 201 seats (35%) that lacked Democratic competition, a 27% increase from 2019.
  • Overall, Democrats ran for 376 seats (65%) and Republicans ran for 460 (80%).
  • The total number of seats without major party competition—319—was more than in 2019 (301), the last time all four states held elections, representing a 6% increase.
  • In odd years from 2011 to 2023, an average of 60% of seats had major party competition, compared to the average of 61% ineven years between 2010 and 2022.
  • One of the two major parties wasguaranteed a simple majority infour chambers acrosstwo states due to the lack of major party competition.

  • Major party competition in state legislative elections, 2023
    ChamberSeats
    UncontestedContested
    Only DemocratsOnly RepublicansTotal
    #%#%#%#%
    House4079222.6%14335.1%23658.0%17142.0%
    Senate1712514.6%5833.9%8348.5%8851.5%
    Total57811720.2%20134.8%31955.2%25944.8%

    The chart below shows a breakdown of major party competition in state legislative elections from 2011 to 2023.

    Margin of victory

    See also:Margin of victory analysis for the 2023 state legislative elections

    Across all 578 seats up for election, the average margin of victory was28.7%. An electoralmargin of victory (MOV) is the difference between the share of votes cast for the winning candidate and the second-place candidate in an election. Only races with more than one candidate were included in this average. The chart below displays the breakdown of races by the winner's partisan affiliation and margin of victory for each state legislative chamber with single-member districts which held elections in 2023. A darker shade of red or blue indicates a larger margin for that party.

    The table below displays how many seats were up for election in each chamber and how many seats each party won. It also includes a breakdown of how many seats Democrats and Republicans won by 10% or less and without opposition in each chamber, as well as the average margin of victory for each party. Click on a particular header to sort the table.

    Average MOV for state legislative elections, 2023
    ChamberSeats up for electionDemocratic Party Seats won by DemocratsDemocratic Party Seats won by Democrats by margins of 10% or lessDemocratic Party Seats won by unopposed DemocratsDemocratic Party Average margin of victory for DemocratsRepublican Party Seats won by RepublicansRepublican Party Seats won by Republicans by margins of 10% or lessRepublican Party Seats won by unopposed RepublicansRepublican Party Average margin of victory for RepublicansGrey.png Seats won by independent and minor party candidates
    Louisiana House of Representatives
    105
    32
    3
    17
    27.8%
    73
    4
    31
    30.6%
    0
    Louisiana State Senate
    39
    11
    0
    8
    36.3%
    28
    3
    12
    32.6%
    0
    Mississippi House of Representatives
    122
    41
    0
    32
    48.6%
    79
    0
    59
    47.8%
    2
    Mississippi State Senate
    52
    16
    0
    11
    22.9%
    36
    0
    27
    44.2%
    0
    New Jersey General Assembly[13]
    80
    27
    7
    1
    17.9%
    13
    8
    0
    8.2%
    0
    New Jersey State Senate
    40
    25
    2
    1
    37.9%
    15
    5
    0
    21.4%
    0
    Virginia House of Delegates
    100
    51
    5
    18
    28.1%
    49
    11
    14
    22.0%
    0
    Virginia State Senate
    40
    21
    3
    2
    27.9%
    19
    5
    3
    22.1%
    0
    Total
    578
    224
    20
    90
    29.2%
    312
    36
    146
    28.4%
    2

    State legislative races decided by 0.5% or less

    In 2023, there weretwo races decided by margins of 0.5% or smaller.

    State legislative races decided by 0.5% or less, 2023
    DistrictWinnerRunner-upMargin (%)Margin (number of votes)
    New Jersey General Assembly District 8
    Democratic PartyAndrea Katz
    Democratic PartyAnthony Angelozzi
    0.18%
    198
    Virginia House of Delegates District 82
    Republican PartyKim Taylor
    Democratic PartyKimberly Adams
    0.27%
    78

    Political context

    The 2023 cycle was the first and only time legislators in Louisiana, Mississippi, and the Virginia Senate stood for re-election following President Joe Biden's (D) election in 2020. Legislators in New Jersey and the Virginia House stood for re-election in2021, when Republicans won control of the Virginia House and narrowed Democratic majorities in both New Jersey chambers.

    In 2022, Republicans had anet gain of 27 state legislative seats nationwide, representing 0.4% of the 7,386 seats up for election. Meanwhile, Democrats won majorities infour chambers: the Michigan House and Senate, the Minnesota Senate, and the Pennsylvania House. Additionally, the Alaska Senate changed from a Republican majority to abipartisan majority made up of Democrats and Republicans, and the Alaska House changed from a multipartisan majority made up primarily of Democrats and independents to a multipartisan majority made up primarily of Republicans.

    Changes in chamber partisan control, 2010 to 2022

    See also:Partisan composition of state legislatures

    From 2010 to 2022, 41 chambers switched control: 21 switched control once, 15 switched control twice, one switched control three times, three switched control four times, and one — theNew Hampshire House of Representatives — switched control five times. During that same time, there were 58 chambers that did not switch control.

    Before the 2010 elections, Democrats controlled 60 of the country's 99 state legislative chambers, Republicans controlled 37, and neither party controlled the remaining two chambers. After the 2022 elections, Democrats controlled 40 chambers and Republicans controlled 57. Multipartisan majorities controlled the Alaska Senate and House.

    Most changes in partisan control came from major elections, but some also came through special elections (Louisiana House in 2010; Washington Senate in 2017) and party-switching (Louisiana House in 2010; Mississippi Senate in 2011). In some cases, the party that gained control did not have a numerical majority but instead controlled the chamber through abipartisan coalition (Alaska House in 2016). This table does not account for changes in party control or ties in a chamber that lasted for less than one year and were not the result of a regularly scheduled election. An example of this is the brief period of Democratic control in the Virginia Senate in 2014.[14]

    For this chart, a red box indicates that the chamber changed from Democratic to Republican control, and a blue box indicates that the chamber changed from Republican to Democratic control.[15]

    Chamber changes in partisan control: 2010-2022
    Party changes in 2010Party changes in 2011Party changes in 2012Party changes in 2014Party changes in 2016Party changes in 2017Party changes in 2018Party changes in 2019Party changes in 2020Party changes in 2021Party changes in 2022
    Alabama SenateLouisiana Senate[16][17]Alaska SenateColorado SenateAlaska HouseWashington SenateAlaska House[18]Virginia SenateNew Hampshire SenateVirginia HouseAlaska Senate[19]
    Alabama HouseMississippi Senate[20][21]Arkansas SenateMaine SenateIowa SenateColorado SenateVirginia HouseNew Hampshire HouseMichigan House
    Colorado HouseMississippi HouseArkansas HouseMinnesota HouseKentucky HouseMaine SenateMichigan Senate
    Indiana HouseVirginia Senate[22]Colorado HouseNevada SenateMinnesota SenateMinnesota HouseMinnesota Senate
    Iowa HouseMaine SenateNevada HouseNevada SenateNew Hampshire HousePennsylvania House[23]
    Louisiana House[24][25]Maine HouseNew Hampshire HouseNevada HouseNew Hampshire Senate
    Maine SenateMinnesota SenateNew Mexico HouseNew Mexico HouseNew York Senate
    Maine HouseMinnesota HouseWest Virginia Senate
    Michigan HouseNew Hampshire HouseWest Virginia House
    Minnesota SenateOregon House[26]
    Minnesota HouseWashington Senate
    Montana House[27]
    New Hampshire Senate
    New Hampshire House
    New York Senate
    North Carolina Senate
    North Carolina House
    Ohio House
    Oregon House[28]
    Pennsylvania House
    Wisconsin Senate
    Wisconsin House
    Total changes: 22Total changes: 4Total changes: 11Total changes: 9Total changes: 7Total changes: 1Total changes: 7Total changes: 2Total changes: 2Total changes: 1Total changes: 5


    The chart below shows how many chambers each party controlledafter the November elections in a given year.

    Partisan control of state legislative chambers: 2010-2022
    ElectionDemocratic chambersRepublican chambersOther
    Before 201060372
    201038592
    201135604
    201241562
    201341562
    201430681
    201530681
    201631680
    201732670
    201837611
    201939591
    202037611
    202136621
    202240572


    Trifectas from 2010 to 2022

    See also:State government trifectas

    A state government trifecta occurs when one political party controls the primary levers of power in a state: the governor's office, the state Senate, and the state House. From 2010 to 2018, the Republican Party increased its number of trifectas and the Democratic Party saw a decline in its trifectas. Democrats picked up six trifectas in the 2018 elections, and Republicans lost four trifectas. Following the 2021 elections, the Democratic trifecta in Virginia became a split government after Republicans gained control of thestate House andgovernorship.

    This chart shows the number of trifectas each party held heading into elections from 2010 to 2022, and the number of trifectas following the 2022 elections.

    Trifectas by year: 2010-2022
    ElectionDemocratic trifectasRepublican trifectasStates under divided government
    Pre-2010 elections171023
    Pre-2012 elections112217
    Pre-2014 elections122414
    Pre-2016 elections72320
    Pre-2018 elections82616
    Pre-2020 elections152114
    Pre-2021 elections152312
    Pre-2022 elections142313
    Post-2022 elections172211


    See also

    Other elections

    Footnotes

    1. These figures treat vacant seats as of November 7 as belonging to the party that most recently held control.
    2. Louisiana Constitution, "Article 3, Section 5," accessed February 10, 2021
    3. Louisiana Constitution, "Article 4, Section 3," accessed February 10, 2021
    4. Mississippi Constitution, "Article 4, Section 36," accessed November 1, 2021
    5. New Jersey Constitution, "Article IV, Section II (2.)," accessed February 10, 2021
    6. Virginia Legislative Information System, "Code of Virginia - § 24.2-214. Election and term of Senators." accessed January 6, 2022
    7. Virginia Legislative Information System, "Code of Virginia - § 24.2-215. Election and term of members of the House of Delegates." accessed January 6, 2022
    8. 8.08.18.2Candidates running for special elections in Virginia are selected through firehouse primaries administered by each political party.
    9. This contest was between the candidates who tied in the general election onNovember 8, 2022.
    10. The special election was called for January 9, 2024, but the election was won outright in the primary runoff on October 24, 2023.
    11. Some of the 22 term-limited state legislators in 2023 may have resigned before their term ends. These legislators were still counted in the total number of term-limited legislators in 2023.
    12. Totals may include minor party or independent officeholders.
    13. Cite error: Invalid<ref> tag; no text was provided for refs namednjnote
    14. The Washington Post, "Virginia Republicans snatched control of the state Senate, ended budget-Medicaid impasse," June 9, 2014
    15. 2015 and 2013 are not included because no chambers changed those years.
    16. The chamber first changed from Democratic to Republican control in a February 2011 special election. Republicans increased their majority to 24-15 in the 2011 elections.
    17. Fox News, "GOP Candidate Wins Lousiana [sic] Senate Special Election, Shifting Majority," February 20, 2011
    18. Chamber went from being controlled by a Democratic-led bipartisan coalition to being led by a coalition with power split between the parties.
    19. Chamber went from a Republican majority to a bipartisan governing coalition.
    20. The chamber changed partisan control prior to the 2011 elections due to Democrats switching to the Republican Party and special election wins by Republicans. Republicans increased their majority in the 2011 elections to 31-21.
    21. The Washington Post, "Southern Democrats in dire straits; 2011 looms large," January 11, 2011
    22. In the 2011 elections, the chamber changed from a 22-18 Democratic advantage to a 20-20 tie. Republicans effectively controlled the chamber because Lieutenant Gov.Bill Bolling (R) could cast tie-breaking votes.
    23. Democrats won a majority of seats, but did not have a majority when the legislative session began due to vacancies created during the interim.
    24. This chamber did not hold elections in 2010. It switched partisan control in December 2010 when Democrat Noble Ellingtonchanged his party affiliation to Republican. In the regularly-scheduled 2011 elections, Republicans increased their majority to 58-45.
    25. Nola.com, "Louisiana Republicans take first House majority since Reconstruction with latest party switch," December 17, 2010
    26. In this election, the Oregon House changed from a 30-30 tie to a 34-26 Democratic advantage.
    27. This chamber went from a 50-50 tie to a 68-32 Republican advantage in the 2010 elections.
    28. This chamber went from a 36-24 Democratic advantage to a 30-30 tie in the 2010 elections.
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