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United States Senate elections, 2024

From Ballotpedia
2022
2026



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2024 U.S. Senate Elections

Election Date
November 5, 2024

U.S. Senate Elections by State
ArizonaCaliforniaCalifornia (special)ConnecticutDelawareFloridaHawaiiIndianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNebraska (special)NevadaNew JerseyNew MexicoNew YorkNorth DakotaOhioPennsylvaniaRhode IslandTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyoming

U.S. House Elections


Republicans won control of theU.S. Senate, winning a 53-45 majority with two independents as a result of theNovember 5, 2024 elections. Two independents—Sens.Angus King andBernie Sanders—caucus with theDemocratic Party.

As a result of the elections, Republicans gained four seats inMontana,Ohio,Pennsylvania, andWest Virginia. Democrats gained one seat inArizona. This was a net change of +4 Republicans, -2 Democrats, and -2 independents.

Heading into the 2024 general election, Democrats had a 47-49 majority with four independents. Three of those independents caucused with the Democratic Party, and one other, Sen.Kyrsten Sinema counted towards the Democratic majority for committee purposes.

Thirty-four of 100 Senate seats were up for election. Thirty-three of those seats were up for regular election, and one[1] was up for aspecial election. Democrats were defending three Senate seats, in Montana, Ohio, and West Virginia, in statesDonald Trump (R) won in the2020 presidential election. Republicans were not defending any Senate seats in statesJoe Biden (D) won in 2020.

Of the seats up for election in 2024, Democrats held 19, Republicans held 11, and independents held four. Eight members of the U.S. Senate did not run for re-election, more than in any year since 2012.

Ballotpedia identified15 races (41.2%) as general electionbattlegrounds in 2024. Heading into the elections, Democrats held 11 of those seats, Republicans held three, and independents held one. Republicans won three seats previously held by Democrats in Montana, Ohio, and Pennsylvania and Democrats won the seat in Arizona, previously held byKyrsten Sinema (I).

Ten seats were open because the incumbent did not run for re-election. Nine incumbents retired from public office and one incumbent ran for another office.Click here to learn more.

Ballotpedia does not include incumbents leaving office early in our analysis of incumbents not running for re-election. For more information about incumbents who left office early or announced resignations,click here.

Two special elections also took place on Nov. 5, 2024. One special election was held to fill the last two years of the six-year term that Sen.Ben Sasse (R-Neb.) was elected to in2020.[2] The other special election was held to fill the rest of the six-year term thatDianne Feinstein (D-Calif.) was elected to in 2018. Feinstein died on Sept. 29, 2023. The Senate seat Feinstein held was also up for regular election on Nov. 5, 2024.[3]

Click here for coverage of U.S. Senate elections in 2022.

Click on the links below to jump to the various sections on this page:

Contents

Partisan balance

U.S. Senate Partisan Breakdown
PartyAs of November 5, 2024After the 2024 Election
    Democratic Party
47[4]
45[5]
    Republican Party
49
53
    Independent
4[4]
2[5]
Total
100
100


The chart below shows historical partisan breakdown information for the chamber.


Election results, 2024

See also:Election results, 2024: U.S. Senate

Incumbents defeated in the general election

The following table lists incumbents defeated in the 2024 general election for U.S. Senate.

U.S. Senate incumbents defeated in the 2024 general election
StateIncumbentElection winner
MontanaDemocratic PartyJon TesterRepublican PartyTim Sheehy
OhioDemocratic PartySherrod BrownRepublican PartyBernie Moreno
PennsylvaniaDemocratic PartyBob Casey Jr.Republican PartyDavid McCormick

Margins of victory

The average margin of victory for U.S. Senate races was, 16.7 percentage points lower than the 19.8 percentage points average margin in 2022 and the 18.1 percentage points average margin in 2020. The average margin of victory was 12.8 percentage points for Democrats and 20 percentage points for Republicans. This was below the 2022 averages for both parties, which were 16.68 percentage points for Democrats and 22.9 percentage points for Republicans.

The narrowest margin in any U.S. Senate election in 2024 was 0.2 percentage points inPennsylvania.David McCormick (R) defeated IncumbentBob Casey Jr. 48.8%-48.6. The largest margin of victory in 2024 was 51 percentage points inWyoming. IncumbentJohn Barrasso (R) defeatedScott Morrow (D) 75.1%-24.1%

List of all 2024 U.S. Senate margins of victory

This table shows the margins of victory in U.S. Senate elections on November 5, 2024.

U.S. Senate margins of victory, 2024
StateVotes castWinnerWinner votesRunner-upRunner-up votesMarginMargin (%)
Arizona3,199,898Democratic PartyRuben Gallego1,600,923Republican PartyKari Lake1,528,29772,6262.2%
California7,580,633Democratic PartyAdam Schiff4,534,025Republican PartySteve Garvey3,046,6081,487,41719.6%
Connecticut320,164Democratic PartyChris Murphy182,872Republican PartyMatthew Corey132,10550,76715.8%
Delaware500,606Democratic PartyLisa Blunt Rochester283,298Republican PartyEric Hansen197,75385,54517.0%
Florida10,757,428Republican PartyRick Scott5,977,706Democratic PartyDebbie Mucarsel-Powell4,603,0771,374,62912.8%
Hawaii432,724Democratic PartyMazie Hirono283,454Republican PartyBob McDermott135,761147,69334.1%
Indiana1,494,930Republican PartyJim Banks886,283Democratic PartyValerie McCray570,624315,65921.1%
Massachusetts1,024,309Democratic PartyElizabeth Warren626,933Republican PartyJohn Deaton397,376229,55722.4%
Maryland2,044,316Democratic PartyAngela Alsobrooks1,078,306Republican PartyLarry Hogan917,883160,4237.8%
Maine799,276Grey.pngAngus King414,127Republican PartyDemi Kouzounas274,72213940517.4%
Michigan5,532,533Democratic PartyElissa Slotkin2,690,225Republican PartyMike Rogers2,671,87218,3530.3%
Minnesota1,775,095Democratic PartyAmy Klobuchar1,020,587Republican PartyRoyce White698,488322,09918.2%
Missouri2,176,294Republican PartyJosh Hawley1,149,665Democratic PartyLucas Kunce970,058179,6078.2%
Mississippi742,514Republican PartyRoger Wicker475,377Democratic PartyTy Pinkins267,137208,24028.0%
Montana543,362Republican PartyTim Sheehy289,696Democratic PartyJon Tester243,98645,7108.4%
North Dakota364,327Republican PartyKevin Cramer241,569Democratic PartyKatrina Christiansen121,602119,96732.9%
Nebraska677,158Republican PartyDeb Fischer354,409Grey.pngDan Osborn322,74931,6604.6%
Nebraska (special election)574,387Republican PartyPete Ricketts336,614Democratic PartyPreston Love Jr.237,77398,84117.2%
New Jersey2,895,528Democratic PartyAndrew Kim1,561,944Republican PartyCurtis Bashaw1,274,048287,8969.9%
New Mexico820,164Democratic PartyMartin Heinrich446,554Republican PartyNella Domenici373,61072,9448.8%
Nevada1,400,656Democratic PartyJacky Rosen669,034Republican PartySam Brown650,98918,0451.3%
New York7,322,568Democratic PartyKirsten Gillibrand4,271,933Republican PartyMike Sapraicone3,016,3881,255,54517.1%
Ohio5,514,140Republican PartyBernie Moreno2,769,656Democratic PartySherrod Brown2,557,598212,0583.8%
Pennsylvania6,960,423Republican PartyDavid McCormick3,398,602Democratic PartyBob Casey Jr.3,382,29316,3090.2%
Rhode Island425,148Democratic PartySheldon Whitehouse245,197Republican PartyPatricia Morgan179,951179,95115.4%
Tennessee2,878,014Republican PartyMarsha Blackburn1,851,088Democratic PartyGloria Johnson969,569881,51930.6%
Texas10,374,488Republican PartyTed Cruz5,580,601Democratic PartyColin Allred4,562,8741,017,7279.8%
Utah802,078Republican PartyJohn Curtis491,733Democratic PartyCaroline Gleich271,313220,42027.5%
Virginia4,005,814Democratic PartyTim Kaine2,153,825Republican PartyHung Cao301836301,8367.6%
Vermont363,253Grey.pngBernie Sanders229,429Republican PartyGerald Malloy116,512112,91731.1%
Washington2,562,817Democratic PartyMaria Cantwell1,535,231Republican PartyRaul Garcia1,027,586507,64519.8%
Wisconsin3,387,208Democratic PartyTammy Baldwin1,672,550Republican PartyEric Hovde1,672,55028,9580.9%
West Virginia617,412Republican PartyJim Justice433,428Democratic PartyGlenn Elliott161,538271,89044.0%
Wyoming264,162Republican PartyJohn Barrasso198,418Democratic PartyScott Morrow63,727134,69151.0%

Seats up for election

There were 33 U.S. Senate seats up for regular election in 2024—10 seats held by Republicans, 19 held by Democrats, and four held by independents who caucus with Democrats.[6]

Two special elections also took place on Nov. 5, 2024. One special election was held to fill the last two years of the six-year term thatBen Sasse (R) was elected to in2020.[7][8][9] The other special election was held to fill the rest of the six-year term thatDianne Feinstein (D-Calif.) was elected to in 2018. Feinstein died on Sept. 29. 2023. The Senate seat Feinstein held was also up for regular election on Nov. 5, 2024.[10]

The map and table below shows what seats were up for election and the incumbent heading into the election in each race.


Table last updated: October 24, 2024

2024 Senate elections
StatePre-election
incumbent
Year first electedLast election
margin of victory
Open seat in 2024
ArizonaIndependentKyrsten Sinema20182.4Yes
CaliforniaDemocratic PartyLaphonza ButlerAppointed 20238.4Yes
ConnecticutDemocratic PartyChristopher Murphy201220.2No
DelawareDemocratic PartyThomas Carper200022.2Yes
FloridaRepublican PartyRick Scott20180.2No
HawaiiDemocratic PartyMazie Hirono201242.4No
IndianaRepublican PartyMike Braun20185.9Yes
MassachusettsDemocratic PartyElizabeth Warren201224.1No
MarylandDemocratic PartyBenjamin Cardin200634.6Yes
MaineIndependentAngus King201219.1No
MichiganDemocratic PartyDebbie Stabenow20006.5Yes
MinnesotaDemocratic PartyAmy Klobuchar200624.1No
MissouriRepublican PartyJosh Hawley20185.8No
MississippiRepublican PartyRoger Wicker200619No
MontanaDemocratic PartyJon Tester20063.5No
North DakotaRepublican PartyKevin Cramer201810.8No
NebraskaRepublican PartyDeb Fischer201219.1No
Nebraska (special election)Republican PartyPete RickettsAppointed 202338.3No
New JerseyDemocratic PartyRobert Menendez200611.2Yes
New MexicoDemocratic PartyMartin Heinrich201223.6No
NevadaDemocratic PartyJacky Rosen20185No
New YorkDemocratic PartyKirsten Gillibrand201034No
OhioDemocratic PartySherrod Brown20066.8No
PennsylvaniaDemocratic PartyRobert Casey200613.1No
Rhode IslandDemocratic PartySheldon Whitehouse200623.1No
TennesseeRepublican PartyMarsha Blackburn201810.8No
TexasRepublican PartyTed Cruz20122.6No
UtahRepublican PartyMitt Romney201831.7Yes
VirginiaDemocratic PartyTim Kaine201216No
VermontIndependentBernard Sanders200639.9No
WashingtonDemocratic PartyMaria Cantwell200016.8No
WisconsinDemocratic PartyTammy Baldwin201210.8No
West VirginiaIndependentJoe Manchin20103.3Yes
WyomingRepublican PartyJohn Barrasso200636.9No


Incumbents who did not run for re-election


Eight United States Senators did not seek re-election to their U.S. Senate seats (not including those who left office early):

  • Democratic Party 4 Democrats
  • Republican Party 2 Republicans
  • Independent 2 Independent

Incumbents retiring from public office

  • Democratic Party 4 Democrats
  • Republican Party 1 Republican
  • Independent 2 Independent
Retired from public office, 2024
NamePartyStateDate announced
Kyrsten SinemaIndependentIndependentArizonaMarch 5, 2024[11]
Joe ManchinIndependentIndependentWest VirginiaNovember 9, 2023[12]
Laphonza ButlerDemocratic PartyDemocratCaliforniaOctober 19, 2023[13][14]
Debbie StabenowDemocratic PartyDemocratMichiganJanuary 5, 2023[15]
Ben CardinDemocratic PartyDemocratMarylandMay 1, 2023[16]
Tom CarperDemocratic PartyDemocratDelawareMay 22, 2023[17]
Mitt RomneyRepublican PartyRepublicanUtahSeptember 13, 2023[18]

Incumbents seeking other offices

  • Republican Party 1 Republican
Ran for governor, 2024
NamePartyStateDate announced
Mike BraunRepublican PartyRepublicanIndianaNovember 30, 2022[19]


Battlegrounds

Elections for 34 U.S. Senate seats took place in 2024. Thirty-three of those seats were up for regular election, and one[20] was up for aspecial election. Ahead of the November election, Democrats had a majority in the U.S. Senate, controlling 51 seats[21] to Republicans' 49.

Ballotpedia identified15 races as general electionbattlegrounds in 2024.

These battleground races were selected using the following criteria. For more information on our methodology, clickhere:

  • the results of the2020 presidential election in each state,
  • whether the incumbent was seeking re-election,
  • whether the incumbent was serving his or her first term in the U.S. Senate, and
  • how theCook Political Report,Sabato's Crystal Ball, andInside Elections with Nathan Gonzales rated the race.

In addition to the competitiveness data above, races were included if they were particularlycompelling ormeaningful to the balance of power in governments forother reasons.

In 2022, Ballotpedia identified 12 U.S. Senatebattleground races: fourDemocratic seats and eightRepublican seats. Democrats won one Republican-held seat. Republicans won no seats held by Democrats.

Click on the links below to learn more about battleground races of other types:

The following map displays all states that held U.S. Senate elections in 2024 shaded by the incumbent's or most recent incumbent's political affiliation. Battleground races are highlighted in lighter colors. Hover over a state for more information.

Battleground U.S. Senate elections, 2024
StateIncumbentOpen seat?2018 margin2024 margin2020 presidential margin
ArizonaIndependentKyrsten SinemaYesD+2.4[22]D+2.2D+0.3
CaliforniaDemocratic PartyLaphonza ButlerYesN/A[23]D+19.6D+29.2
FloridaRepublican PartyRick ScottNoR+0.2R+12.8R+3.3
MarylandDemocratic PartyBen CardinYesD+34.6D+7.8D+33.2
MichiganDemocratic PartyDebbie StabenowYesD+6.5D+0.3D+2.8
MontanaDemocratic PartyJon TesterNoD+3.5R+8.4R+16.4
NebraskaRepublican PartyDeb FischerNoR+19.1R+4.6R+19
NevadaDemocratic PartyJacky RosenNoD+5D+1.3D+2.4
New JerseyDemocratic PartyBob Menendez Sr.YesD+11.2D+9.9D+15.9
New MexicoDemocratic PartyMartin HeinrichNoD+10.8D+8.8D+15.9
OhioDemocratic PartySherrod BrownNoD+6.8R+3.8R+8.1
PennsylvaniaDemocratic PartyBob CaseyNoD+13.1R+0.2D+1.2
TexasRepublican PartyTed CruzNoR+2.6R+9.8R+5.6
VirginiaDemocratic PartyTim KaineNoD+16D+7.610.1
WisconsinDemocratic PartyTammy BaldwinNoD+10.8D+0.9D+0.7


Outside race ratings

The following table compared U.S. Senate race ratings fromThe Cook Political Report with Amy Walter,Decision Desk HQ and The Hill,Inside Elections, andSabato's Crystal Ball prior to the November 2024 elections.


List of candidates

The table below contains a list of all candidates for the U.S. Senate in 2024. The table is fully searchable bycandidate, party andcandidacy status. Depending on the size of your screen, you'll either see a menu to the left of the table or an arrow at the top right corner, which you can use to select a state.

Arizona Senate Candidates - 2024
candidatepartyofficestatus
Democratic
Won General
Republican
Lost General
Republican
Lost Primary
Republican
Lost (Write-in) General
Republican
Lost Primary
Republican
Lost (Write-in) Primary
Green
Lost Primary
Green
Lost Primary
Green
Lost General
Independent
Lost (Write-in) General
Independent
Lost (Write-in) General
Libertarian
Lost (Write-in) General
No party preference
Lost (Write-in) General
No party preference
Lost (Write-in) General
Us Altogether Party
Lost (Write-in) General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Democratic
Withdrew Primary
No party preference
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

California Senate Candidates - 2024
candidatepartyofficestatus
Democratic
Won General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost (Write-in) Primary
Republican
Lost General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost (Write-in) Primary
Republican
Lost Primary
American Independent Party of California
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Libertarian
Lost Primary
No party preference
Lost (Write-in) Primary
No party preference
Lost (Write-in) Primary
No party preference
Lost Primary
No party preference
Lost Primary
No party preference
Lost Primary
No party preference
Lost Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew (Write-in) Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Green
Withdrew Primary
No party preference
Withdrew (Write-in) Primary
No party preference
Withdrew Primary
No party preference
Withdrew Primary
No party preference
Withdrew Primary
No party preference
Withdrew Primary
Vienmerisce Veittemeignzce USA
Withdrew Primary

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Connecticut Senate Candidates - 2024
candidatepartyofficestatus
Democratic, Working Families Party
Won General
Republican
Lost General
Republican
Lost Primary
Cheaper Gas Groceries Party
Lost General
Green
Lost General
Republican
Withdrew Primary

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Delaware Senate Candidates - 2024
candidatepartyofficestatus
Democratic
Won General
Republican
Lost General
Independent Party
Lost General
Republican
Withdrew Primary
Democratic
Withdrew Primary

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Florida Senate Candidates - 2024
candidatepartyofficestatus
Rick Scott
Rick Scott Incumbent
Republican
Won General
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost General
Democratic
Lost Primary
Libertarian
Lost General
No Party Affiliation
Lost General
No Party Affiliation
Lost (Write-in) General
No Party Affiliation
Lost General
Republican
Withdrew Primary
Republican
Disqualified Primary
Republican
Disqualified Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Democratic
Disqualified Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Green
Withdrew General
Green
Withdrew General
No Party Affiliation
Withdrew General
No Party Affiliation
Withdrew (Write-in) General
No Party Affiliation
Withdrew General
No Party Affiliation
Withdrew General
No Party Affiliation
Withdrew General
No Party Affiliation
Withdrew General
One Earth Party
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Hawaii Senate Candidates - 2024
candidatepartyofficestatus
Mazie K. Hirono
Mazie K. Hirono Incumbent
Democratic
Won General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost General
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Green
Lost General
Nonpartisan
Lost Primary
We the People
Lost General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Aloha Aina Party
Withdrew Primary
Green
Withdrew Primary
Libertarian
Withdrew Primary
Nonpartisan
Withdrew Primary

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Indiana Senate Candidates - 2024
candidatepartyofficestatus
Republican
Won General
Democratic
Lost Primary
Democratic
Lost General
Independent
Lost (Write-in) General
Independent
Lost (Write-in) General
Libertarian
Lost General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Disqualified Primary
Republican
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Independent
Withdrew General
Independent
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Maine Senate Candidates - 2024
candidatepartyofficestatus
Angus King
Angus King Incumbent
Independent
Won Round 1
Republican
Lost Round 1
Democratic
Lost Round 1
Independent
Lost Round 1
Democratic
Withdrew Round 1

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Maryland Senate Candidates - 2024
candidatepartyofficestatus
Democratic
Won General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost General
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Libertarian
Lost General
Unaffiliated
Lost (Write-in) General
Unaffiliated
Lost (Write-in) General
Unaffiliated
Lost (Write-in) General
Unaffiliated
Lost (Write-in) General
Unaffiliated
Lost (Write-in) General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Green
Withdrew General
Green
Withdrew General
No Party Affiliation
Withdrew (Write-in) General
Progressive Party
Withdrew General
Unaffiliated
Withdrew General
Unaffiliated
Disqualified General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Massachusetts Senate Candidates - 2024
candidatepartyofficestatus
Democratic
Won General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Libertarian
Withdrew General
Unenrolled
Withdrew General
Unenrolled
Withdrew General
Workers Party
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Michigan Senate Candidates - 2024
candidatepartyofficestatus
Democratic
Won General
Republican
Lost Primary
Republican
Lost (Write-in) General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost General
Democratic
Lost Primary
Green
Lost General
Libertarian
Lost General
Natural Law Party
Lost General
U.S. Taxpayers Party
Lost General
U.S. Taxpayers Party
Lost (Write-in) General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Democratic
Disqualified Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Independent
Withdrew General
Independent
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Minnesota Senate Candidates - 2024
candidatepartyofficestatus
Amy Klobuchar
Amy Klobuchar Incumbent
Democratic
Won General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost General
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Independence-Alliance Party of Minnesota
Lost General
Libertarian
Lost General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Democratic
Withdrew Primary

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Mississippi Senate Candidates - 2024
candidatepartyofficestatus
Roger Wicker
Roger Wicker Incumbent
Republican
Won General
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Missouri Senate Candidates - 2024
candidatepartyofficestatus
Josh Hawley
Josh Hawley Incumbent
Republican
Won General
Better Party
Lost General
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost General
Democratic
Lost Primary
Green
Lost General
Independent
Lost (Write-in) General
Libertarian
Lost General
Republican
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Independent
Withdrew General
Socialist Equality Party
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Montana Senate Candidates - 2024
candidatepartyofficestatus
Republican
Won General
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost Primary
Jon Tester
Jon Tester Incumbent
Democratic
Lost General
Green
Lost General
Libertarian
Lost General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Green
Withdrew General
Libertarian
Withdrew Primary

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Nebraska Senate Candidates - 2024
candidatepartyofficestatus
Deb Fischer
Deb Fischer Incumbent
Republican
Won General
Republican
Lost Primary
Legal Marijuana Now Party
Lost Primary
Nonpartisan
Lost General
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Legal Marijuana Now Party
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Nevada Senate Candidates - 2024
candidatepartyofficestatus
Jacky Rosen
Jacky Rosen Incumbent
Democratic
Won General
Republican
Lost General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Independent American Party
Lost General
Libertarian
Lost General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Libertarian
Withdrew General
No Political Party
Withdrew General
No Political Party
Withdrew General
No Political Party
Withdrew General
No Political Party
Withdrew General
No Political Party
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

New Jersey Senate Candidates - 2024
candidatepartyofficestatus
Democratic
Won General
Republican
Lost General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Green
Lost General
Libertarian
Lost General
Socialist Workers Party
Lost General
Vote Better Party
Lost General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Independent
Withdrew General
Bob Menendez
Bob Menendez Incumbent
Independent
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

New Mexico Senate Candidates - 2024
candidatepartyofficestatus
Martin Heinrich
Martin Heinrich Incumbent
Democratic
Won General
Republican
Lost General
Republican
Disqualified Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Democratic
Withdrew Primary
Independent
Withdrew General
Independent
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

New York Senate Candidates - 2024
candidatepartyofficestatus
Democratic, Working Families Party
Won General
LaRouche Party
Lost General
Republican, Conservative Party
Lost General
Republican
Disqualified Primary
Republican
Disqualified Primary
Republican
Withdrew Primary
Republican
Disqualified Primary
Republican
Withdrew Primary
American Independent Party
Withdrew General
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Disqualified Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Independent
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

North Dakota Senate Candidates - 2024
candidatepartyofficestatus
Kevin Cramer
Kevin Cramer Incumbent
Republican
Won General
Democratic
Lost General
Independent
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Ohio Senate Candidates - 2024
candidatepartyofficestatus
Republican
Won General
Republican
Lost Primary
Republican
Lost Primary
Sherrod Brown
Sherrod Brown Incumbent
Democratic
Lost General
Independent
Lost (Write-in) General
Independent
Lost (Write-in) General
Independent
Lost (Write-in) General
Independent
Lost (Write-in) General
Libertarian
Lost General
Republican
Withdrew Primary
Republican
Disqualified Primary

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Pennsylvania Senate Candidates - 2024
candidatepartyofficestatus
Republican
Won General
Republican
Lost (Write-in) General
Constitution Party
Lost General
Bob Casey Jr.
Bob Casey Jr. Incumbent
Democratic
Lost General
Green
Lost General
Independent
Lost (Write-in) General
Libertarian
Lost General
Republican
Withdrew Primary
Republican
Disqualified Primary
Republican
Withdrew Primary
American Solidarity Party
Withdrew General
Democratic
Withdrew Primary
Democratic
Disqualified Primary
Independent
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Rhode Island Senate Candidates - 2024
candidatepartyofficestatus
Democratic
Won General
Republican
Lost Primary
Republican
Lost General
Democratic
Lost Primary
Independent
Lost (Write-in) General
Democratic
Withdrew Primary

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Tennessee Senate Candidates - 2024
candidatepartyofficestatus
Republican
Won General
Republican
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost General
Democratic
Lost Primary
Independent
Lost General
Independent
Lost General
Independent
Lost General
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Independent
Disqualified General
Wisdom People Party
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Texas Senate Candidates - 2024
candidatepartyofficestatus
Ted Cruz
Ted Cruz Incumbent
Republican
Won General
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost General
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Democratic
Lost Primary
Independent
Lost (Write-in) General
Independent
Lost (Write-in) General
Libertarian
Lost General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Democratic
Disqualified Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary
Green
Withdrew General
Independent
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Utah Senate Candidates - 2024
candidatepartyofficestatus
Republican
Won General
Republican
Advanced Round 2
Republican
Lost Round 2
Republican
Lost Round 1
Republican
Lost Round 2
Republican
Lost Primary
Republican
Lost Round 1
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost General
Democratic
Lost Convention
Independent American Party of Utah
Lost General
Independent American Party of Utah
Lost Convention
Unaffiliated
Lost (Write-in) General
Republican
Withdrew Primary
Republican
Disqualified Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Vermont Senate Candidates - 2024
candidatepartyofficestatus
Bernie Sanders
Bernie Sanders Incumbent
Independent, Democratic
Won General
Republican
Lost General
Epic Party
Lost General
Green Mountain Peace and Justice Party of Vermont
Lost General
Independent
Lost General
Libertarian
Lost General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Virginia Senate Candidates - 2024
candidatepartyofficestatus
Tim Kaine
Tim Kaine Incumbent
Democratic
Won General
Republican
Lost General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Withdrew General
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Independent
Withdrew General
Independent
Withdrew General
Independent
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Washington Senate Candidates - 2024
candidatepartyofficestatus
Maria Cantwell
Maria Cantwell Incumbent
Democratic
Won General
Republican
Lost General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost Primary
Independent Party
Lost Primary
Independent Party
Lost Primary
No party preference
Lost Primary
Socialist Workers Party
Lost Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Democratic
Withdrew Primary
Democratic
Withdrew Primary

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

West Virginia Senate Candidates - 2024
candidatepartyofficestatus
Republican
Won General
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost Primary
Democratic
Lost General
Democratic
Lost Primary
Independent
Lost (Write-in) General
Independent
Lost (Write-in) General
Independent
Lost (Write-in) General
Libertarian
Lost General
Republican
Withdrew General
Joe Manchin III
Joe Manchin III Incumbent
Democratic
Withdrew Primary
Independent
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Wisconsin Senate Candidates - 2024
candidatepartyofficestatus
Tammy Baldwin
Tammy Baldwin Incumbent
Democratic
Won General
Republican
Lost Primary
Republican
Lost General
Republican
Lost Primary
America First Party
Lost General
Disrupt The Corruption Party
Lost General
Independent
Lost (Write-in) General
Republican
Disqualified Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
Republican
Withdrew Primary
American Independent Party
Withdrew General
No Party Affiliation
Withdrew General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Wyoming Senate Candidates - 2024
candidatepartyofficestatus
John Barrasso
John Barrasso Incumbent
Republican
Won General
Republican
Lost Primary
Republican
Lost Primary
Democratic
Lost General

Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.

Seats that changed party hands in 2018

See also:United States Senate elections, 2018

In 2018—the last time these 33 seats were up for election—six seats changed party hands. Republicans picked up four seats and Democrats picked up two seats.

Senate seats that changed party hands, 2018
StatePre-election incumbent2018 winnerMargin of victory
(percentage points)
ArizonaRepublican PartyJeff FlakeDemocratic PartyKyrsten Sinema[24]2.4
FloridaDemocratic PartyBill NelsonRepublican PartyRick Scott0.2
IndianaDemocratic PartyJoe DonnellyRepublican PartyMike Braun5.9
MissouriDemocratic PartyClaire McCaskillRepublican PartyJosh Hawley5.8
North DakotaDemocratic PartyHeidi HeitkampRepublican PartyKevin Cramer10.8
NevadaRepublican PartyDean HellerDemocratic PartyJacky Rosen5


Battleground primaries

See also:U.S. Senate battleground primaries, 2024

Democratic Party battleground primaries

There were2 U.S. Senate Democratic battleground primaries in 2024.

The following map shows each state with a Democratic battleground primary for U.S. Senate in 2024. Hover over or tap a state to view the incumbent's name.


Republican Party battleground primaries

There were7 U.S. Senate Republican battleground primaries in 2024.

The following map shows each state with a Republican battleground primary for U.S. Senate in 2024. Hover over or tap a state to view the incumbent's name.


Top-two and top-four battleground primaries

There wasone U.S. Senate top-two or top-four battleground primary in 2024:


Party committee fundraising

DSCC

See also:Party committee fundraising, 2023-2024

TheDemocratic Senatorial Campaign Committee (DSCC) reported the following fundraising amounts for the 2023-24 election cycle:

Monthly fundraising for the DSCC for the 2023-24 election cycle
Month
(Dates covered)
Total receiptsTotal disbursementsCash on hand (end of month)Debts owed (end of month)FEC document
Year-End 2024
(November 26-December 31, 2024)
$5,774,614.31$9,623,855.02$11,417,976.88$20,000,000.00Filing
Post-General 2024
(October 17-November 25, 2024)
$28,235,189.72$50,272,848.78$15,267,217.59$20,000,000.00Filing
Pre-General 2024
(October 1-16, 2024)
$40,241,985.42$40,335,024.52$37,304,876.65$20,000,000.00Filing
October 2024
(September 1-30, 2024)
$28,073,337.85$37,628,622.27$37,397,915.75$0.00Filing
September 2024
(August 1-31, 2024)
$19,189,774.30$31,569,714.51$46,953,200.17$0.00Filing
August 2024
(July 1-31, 2024)
$14,866,600.74$8,639,158.20$59,333,140.38$0.00Filing
July 2024
(June 1-30, 2024)
$12,107,758.55$7,312,788.12$53,105,697.84$0.00Filing
June 2024
(May 1-31, 2024)
$10,642,216.67$6,655,375.60$48,310,727.41$0.00Filing
May 2024
(April 1-30, 2024)
$9,332,114.63$6,017,825.97$44,323,886.34$0.00Filing
April 2024
(March 1-31, 2024)
$13,508,962.18$4,410,244.43$41,009,597.68$0.00Filing
March 2024
(February 1-29, 2024)
$9,511,330.21$4,645,296.24$31,910,879.93$0.00Filing
February 2024
(January 1-31, 2024)
$9,720,714.23$3,986,420.22$27,044,845.96$0.00Filing
Year-End 2023
(December 1-31, 2023)
$7,972,504.39$3,774,405.87$21,310,551.95$0.00Filing
December 2023
(November 1-30, 2023)
$5,498,388.27$3,730,228.46$17,112,453.43$0.00Filing
November 2023
(October 1-31, 2023)
$5,315,869.17$4,079,837.28$15,344,293.62$0.00Filing
October 2023
(September 1-30, 2023)
$6,177,728.41$2,766,398.19$14,108,261.73$0.00Filing
September 2023
(August 1-31, 2023)
$4,992,020.36$3,663,267.72$10,696,931.51$0.00Filing
August 2023
(July 1-31, 2023)
$5,157,126.37$3,222,330.20$9,368,178.87$0.00Filing
July 2023
(June 1-30, 2023)
$7,427,497.79$7,315,614.65$7,433,382.70$0.00Filing
June 2023
(May 1-31, 2023)
$5,918,384.97$7,088,848.36$7,321,499.56$3,000,000.00Filing
May 2023
(April 1-30, 2023)
$6,186,012.21$7,280,755.25$8,491,962.95$7,000,000.00Filing
April 2023
(March 1-31, 2023)
$9,459,749.27$7,882,490.39$9,586,705.99$11,000,000.00Filing
March 2023
(Feb. 1-28, 2023)
$5,542,819.98$5,449,998.25$8,009,447.11$15,000,000.00Filing
February 2023
(Jan. 1-31, 2023)
$4,673,631.39$5,352,223.88$7,916,625.38$18,000,000.00Filing

NRSC

See also:Party committee fundraising, 2023-2024

TheNational Republican Senatorial Committee (NRSC) reported the following fundraising amounts for the 2023-24 election cycle:

Monthly fundraising for the NRSC for the 2023-24 election cycle
Month
(Dates covered)
Total receiptsTotal disbursementsCash on hand (end of month)Debts owed (end of month)FEC document
Year-End 2024
(November 26-December 31, 2024)
$7,606,738.48$10,654,389.03$2,734,159.15$17,000,000.00Filing
Post-General 2024
(October 17-November 25, 2024)
$28,012,304.32$42,024,616.83$5,781,809.70$17,000,000.00Filing
Pre-General 2024
(October 1-16, 2024)
$29,750,048.68$31,024,731.18$19,794,122.21$17,000,000.00Filing
October 2024
(September 1-30, 2024)
$30,713,278.44$53,253,641.12$21,068,804.71$0.00Filing
September 2024
(August 1-31, 2024)
$19,140,179.03$26,542,619.98$43,609,167.39$0.00Filing
August 2024
(July 1-31, 2024)
$17,006,684.74$14,301,144.12$51,011,608.34$0.00Filing
July 2024
(June 1-30, 2024)
$18,526,967.69$11,223,941.80$48,306,067.72$0.00Filing
June 2024
(May 1-31, 2024)
$12,363,159.55$9,360,646.45$41,003,041.83$0.00Filing
May 2024
(April 1-30, 2024)
$13,153,581.64$11,693,870.31$38,000,528.73$0.00Filing
April 2024
(March 1-31, 2024)
$18,296,197.19$6,561,007.14$36,540,817.40$0.00Filing
March 2024
(February 1-29, 2024)
$13,140,404.43$6,527,476.89$24,805,627.35$0.00Filing
February 2024
(January 1-31, 2024)
$10,828,320.12$7,004,624.34$18,192,699.81$0.00Filing
Year-End 2023
(December 1-31, 2023)
$9,722,094.10$3,075,142.77$14,369,004.03$0.00Filing
December 2023
(November 1-30, 2023)
$6,020,717.63$5,263,802.25$7,722,052.70$0.00Filing
November 2023
(October 1-31, 2023)
$5,359,549.01$6,564,098.06$6,965,137.32$0.00Filing
October 2023
(September 1-30, 2023)
$8,104,492.54$6,427,702.98$8,169,686.37$500,000.00Filing
September 2023
(August 1-31, 2023)
$5,028,592.35$6,799,472.85$6,492,896.81$2,900,000.00Filing
August 2023
(July 1-31, 2023)
$5,423,862.47$6,645,063.69$8,263,777.31$4,250,000.00Filing
July 2023
(June 1-30, 2023)
$7,755,495.96$6,835,894.90$9,484,978.53$6,250,000.00Filing
June 2023
(May 1-31, 2023)
$6,512,464.45$6,837,230.80$8,565,377.47$7,750,000.00Filing
May 2023
(April 1-30, 2023)
$6,231,654.08$5,397,762.21$8,890,143.82$10,750,000.00Filing
April 2023
(March 1-31, 2023)
$7,815,097.81$8,119,969.57$8,056,251.95$12,750,000.00Filing
March 2023
(Feb. 1-28, 2023)
$5,490,474.62$5,992,200.52$8,361,123.71$16,350,000.00Filing
February 2023
(Jan. 1-31, 2023)
$4,511,554.07$3,826,440.31$8,862,849.61$20,000,000.00Filing

Special elections

See also:Special elections to the 118th United States Congress (2023-2024)

Special elections toUnited States Senate are often required in the event of vacancies. This table lists special Senate elections from 2023 to 2024.

Results of special elections to the 118th Congress (Senate)
RaceElection dateIncumbentWinnerElection MOVPrevious election MOV2020 Presidential election MOV (statewide)[25]
California SenateNovember 5, 2024Dianne FeinsteinAdam SchiffD+18.6D+8.4D+29[26]
Nebraska SenateNovember 5, 2024Ben SassePete RickettsR+17.2R+38.3R+19[27]

Historical special election data

Special elections, 2013-2024

From 2013 to 2024, 80 special elections to the United States Congress were called during the 113th through 118th Congresses. During that time, special elections were called for 29 seats vacated by Democrats and 51 vacated by Republicans.

The table below details how many congressional seats changed parties as the result of a special election between 2013 and 2024. The numbers on the left side of the table reflect how many vacant seats were originally held by each party, while the numbers on the right side of the table show how many vacant seats each party won in special elections.

Congressional special election vacancies and results, 113th Congress to 118th Congress
CongressTotal elections heldVacancies before electionsSeats held after electionsNet change
Democratic Party DemocratsRepublican Party RepublicansDemocratic Party DemocratsRepublican Party Republicans
118th Congress136776+1D, -1R
117th Congress17710710No change
116th Congress103746+1D, -1R
115th Congress1741389+4 D, -4 R
114th Congress72525No change
113th Congress167979No change
Averages13.334.838.56.677.5N/A


U.S. Senate special election partisan change from special elections, 113th Congress to 118th Congress
PartyAs of special electionAfter special election
Democratic PartyDemocrats58
Republican PartyRepublicans74
Total1212
U.S. House special election partisan change from special elections, 113th Congress to 118th Congress
PartyAs of special electionAfter special election
Democratic PartyDemocrats2023
Republican PartyRepublicans3936
Total5959


To see a list of all the Congressional special elections referenced in the table above, click [show] at the right.
 
Results of special elections to the 113th through 118th Congress
RaceElection dateIncumbentWinnerElection MOVPrevious election MOV
Illinois' 2nd Congressional DistrictApril 9, 2013Democratic PartyJesse L. Jackson, Jr.Democratic PartyRobin KellyD+49D+40
South Carolina's 1st Congressional DistrictMay 7, 2013Republican PartyTim ScottRepublican PartyMark SanfordR+9R+26
Missouri's 8th Congressional DistrictJune 4, 2013Republican PartyJo Ann EmersonRepublican PartyJason SmithR+40R+47
U.S. Senate in MassachusettsJune 25, 2013Democratic PartyJohn KerryDemocratic PartyEd MarkeyD+10D+34
U.S. Senate in New JerseyOctober 16, 2013Democratic PartyFrank LautenbergDemocratic PartyCory BookerD+11D+14
Louisiana's 5th Congressional DistrictNovember 16, 2013Republican PartyRodney AlexanderRepublican PartyVance McAllisterR+19[28]R+63
Massachusetts' 5th Congressional DistrictDecember 10, 2013Democratic PartyEd MarkeyDemocratic PartyKatherine ClarkD+34D+23
Alabama's 1st Congressional DistrictDecember 17, 2013Republican PartyJo BonnerRepublican PartyBradley ByrneR+41R+98[29]
Florida's 13th Congressional DistrictMarch 11, 2014Republican PartyC. W. Bill YoungRepublican PartyDavid JollyR+2R+15
Florida's 19th Congressional DistrictJune 24, 2014Republican PartyTrey RadelRepublican PartyCurt ClawsonR+38R+26
U.S. Senate in HawaiiNovember 4, 2014Democratic PartyDaniel InouyeDemocratic PartyBrian SchatzD+40D+25
U.S. Senate in South CarolinaNovember 4, 2014Republican PartyJim DeMintRepublican PartyTim ScottR+24R+34
North Carolina's 12th Congressional DistrictNovember 4, 2014Democratic PartyMelvin WattDemocratic PartyAlma AdamsD+51D+59
U.S. Senate in OklahomaNovember 4, 2014Republican PartyTom CoburnRepublican PartyJames LankfordR+39R+45
Virginia's 7th Congressional DistrictNovember 4, 2014Republican PartyEric CantorRepublican PartyDavid BratR+24R+17
New Jersey's 1st Congressional DistrictNovember 4, 2014Democratic PartyRob AndrewsDemocratic PartyDonald NorcrossD+18D+38
New York's 11th Congressional DistrictMay 5, 2015Republican PartyMichael GrimmRepublican PartyDaniel DonovanR+19R+12
Mississippi's 1st Congressional DistrictMay 12, 2015Republican PartyAlan NunneleeRepublican PartyTrent KellyR+40R+39
Illinois' 18th Congressional DistrictSeptember 10, 2015Republican PartyAaron SchockRepublican PartyDarin LaHoodR+38R+49
Ohio's 8th Congressional DistrictJune 7, 2016Republican PartyJohn BoehnerRepublican PartyWarren DavidsonR+56R+40
Pennsylvania's 2nd Congressional DistrictNovember 8, 2016Democratic PartyChaka FattahDemocratic PartyDwight EvansD+81D+75
Hawaii's 1st Congressional DistrictNovember 8, 2016Democratic PartyMark TakaiDemocratic PartyColleen HanabusaD+43D+4
Kentucky's 1st Congressional DistrictNovember 8, 2016Republican PartyEd WhitfieldRepublican PartyJames Comer Jr.R+44R+46
Kansas' 4th Congressional DistrictApril 11, 2017Republican PartyMike PompeoRepublican PartyRon EstesR+6R+31
Montana's At-Large Congressional DistrictMay 25, 2017Republican PartyRyan ZinkeRepublican PartyGreg GianforteR+6R+15
California's 34th Congressional DistrictJune 6, 2017Democratic PartyXavier BecerraDemocratic PartyJimmy GomezD+18[30]D+54[30]
Georgia's 6th Congressional DistrictJune 20, 2017Republican PartyTom PriceRepublican PartyKaren HandelR+4R+24
South Carolina's 5th Congressional DistrictJune 20, 2017Republican PartyMick MulvaneyRepublican PartyRalph NormanR+3R+20
Utah's 3rd Congressional DistrictNovember 7, 2017Republican PartyJason ChaffetzRepublican PartyJohn CurtisR+32R+47
U.S. Senate in AlabamaDecember 12, 2017Republican PartyJeff SessionsDemocratic PartyDoug JonesD+2R+28
Pennsylvania's 18th Congressional DistrictMarch 13, 2018Republican PartyTim MurphyDemocratic PartyConor LambD+0[31]R+100
Arizona's 8th Congressional DistrictApril 24, 2018Republican PartyTrent FranksRepublican PartyDebbie LeskoR+6R+38
Texas' 27th Congressional DistrictJune 30, 2018Republican PartyBlake FarentholdRepublican PartyMichael CloudR+23R+24
Ohio's 12th Congressional DistrictAugust 7, 2018Republican PartyPatrick TiberiRepublican PartyTroy BaldersonR+1R+40
Michigan's 13th Congressional DistrictNovember 6, 2018Democratic PartyJohn Conyers Jr.Democratic PartyBrenda JonesD+78D+61
U.S. Senate in MinnesotaNovember 6, 2018Democratic PartyAl FrankenDemocratic PartyTina SmithD+11D+10
U.S. Senate in MississippiNovember 6, 2018Republican PartyThad CochranRepublican PartyCindy Hyde-SmithR+8R+22
New York's 25th Congressional DistrictNovember 6, 2018Democratic PartyLouise SlaughterDemocratic PartyJoseph MorelleD+16D+12
Pennsylvania's 7th Congressional DistrictNovember 6, 2018Republican PartyPatrick MeehanDemocratic PartyMary Gay ScanlonD+6R+19
Pennsylvania's 15th Congressional DistrictNovember 6, 2018Republican PartyCharlie DentDemocratic PartySusan WildD+0[32]R+20
Pennsylvania's 12th Congressional DistrictMay 21, 2019Republican PartyTom MarinoRepublican PartyFred KellerR+36R+32
North Carolina's 3rd Congressional DistrictSeptember 10, 2019Republican PartyWalter JonesRepublican PartyGreg MurphyR+24R+100
North Carolina's 9th Congressional DistrictSeptember 10, 2019None[33]Republican PartyDan BishopR+2N/A
Maryland's 7th Congressional DistrictApril 28, 2020Democratic PartyElijah CummingsDemocratic PartyKweisi MfumeD+49D+55
California's 25th Congressional DistrictMay 12, 2020Democratic PartyKatie HillRepublican PartyMike GarciaR+10D+9
Wisconsin's 7th Congressional DistrictMay 12, 2020Republican PartySean DuffyRepublican PartyTom TiffanyR+14R+22
New York's 27th Congressional DistrictJune 23, 2020Republican PartyChris CollinsRepublican PartyChristopher JacobsR+5R+0[34]
U.S. Senate in ArizonaNovember 3, 2020Republican PartyJohn McCainDemocratic PartyMark KellyD+2R+13
Georgia's 5th Congressional DistrictDecember 1, 2020Democratic PartyJohn LewisDemocratic PartyKwanza HallD+8D+100
U.S. Senate in GeorgiaJanuary 5, 2021Republican PartyKelly LoefflerDemocratic PartyRaphael WarnockD+2R+14
Louisiana's 5th Congressional DistrictMarch 21, 2021Republican PartyRalph Abraham[35]Republican PartyJulia LetlowR+38R+24[36]
Louisiana's 2nd Congressional DistrictApril 24, 2021Democratic PartyCedric RichmondDemocratic PartyTroy CarterD+10[37]D+49
New Mexico's 1st Congressional DistrictJune 1, 2021Democratic PartyDebra HaalandDemocratic PartyMelanie Ann StansburyD+30D+16
Texas' 6th Congressional DistrictJuly 27, 2021Republican PartyRonald WrightRepublican PartyJake EllzeyR+6[38]R+9
Ohio's 11th Congressional DistrictNovember 2, 2021Democratic PartyMarcia FudgeDemocratic PartyShontel BrownD+58D+60
Ohio's 15th Congressional DistrictNovember 2, 2021Republican PartySteve StiversRepublican PartyMike CareyR+17R+27
Florida's 20th Congressional DistrictJanuary 11, 2022Democratic PartyAlcee HastingsDemocratic PartySheila Cherfilus-McCormickD+60D+57
California's 22nd Congressional DistrictJune 7, 2022Republican PartyDevin NunesRepublican PartyConnie ConwayR+24R+8
Texas' 34th Congressional DistrictJune 14, 2022Democratic PartyFilemon VelaRepublican PartyMayra FloresR+8D+14
Nebraska's 1st Congressional DistrictJune 28, 2022Republican PartyJeffrey FortenberryRepublican PartyMike FloodR+6R+22
Minnesota's 1st Congressional DistrictAugust 9, 2022Republican PartyJim HagedornRepublican PartyBrad FinstadR+4R+3
Alaska's At-Large Congressional DistrictAugust 16, 2022Republican PartyDon YoungDemocratic PartyMary PeltolaD+3R+9
New York's 19th Congressional DistrictAugust 23, 2022Democratic PartyAntonio DelgadoDemocratic PartyPat RyanD+2D+12
New York's 23rd Congressional DistrictAugust 23, 2022Republican PartyTom ReedRepublican PartyJoe SempolinskiR+7R+17
U.S. Senate in OklahomaNovember 8, 2022Republican PartyJim InhofeRepublican PartyMarkwayne MullinR+26.6R+30
U.S. Senate in CaliforniaNovember 8, 2022Democratic PartyKamala HarrisDemocratic PartyAlex PadillaD+17.6D+23.2
Indiana's 2nd Congressional DistrictNovember 8, 2022Republican PartyJackie WalorskiRepublican PartyRudy YakymR+29.9R+23
Virginia's 4th Congressional DistrictFebruary 21, 2023Democratic PartyDonald McEachinDemocratic PartyJennifer McClellanD+44.4D+27.6
Utah's 2nd Congressional DistrictNovember 21, 2023Republican PartyChris StewartRepublican PartyCeleste MaloyR-21.6R+25.7
Rhode Island's 1st Congressional DistrictNovember 7, 2023Democratic PartyDavid CicillineDemocratic PartyGabe AmoD+29.6D+27.6
New York's 3rd Congressional DistrictFebruary 13, 2024Republican PartyGeorge SantosDemocratic PartyTom SuozziD+7.8R+7.5
New York's 26th Congressional DistrictApril 30, 2024Democratic PartyBrian HigginsDemocratic PartyTim KennedyD+35.8D+27.9
California's 20th Congressional DistrictMay 21, 2024Republican PartyKevin McCarthyRepublican PartyVince FongR+21.0R+34.4
Ohio's 6th Congressional DistrictJune 11, 2024Republican PartyBill JohnsonRepublican PartyMichael RulliR+9.4R+35.4
Colorado's 4th Congressional DistrictJune 25, 2024Republican PartyKen BuckRepublican PartyGreg LopezR+23.6R+24.3
New Jersey's 10th Congressional DistrictSeptember 18, 2024Democratic PartyDonald Payne Jr.Democratic PartyLaMonica McIverD+33.8D+55.3
Texas' 18th Congressional DistrictNovember 5, 2024Democratic PartySheila Jackson LeeDemocratic PartyErica Lee CarterD+47.9D+44.5
Wisconsin's 8th Congressional DistrictNovember 5, 2024Republican PartyMike GallagherRepublican PartyTony WiedR+17.6R+45.1
California SenateNovember 5, 2024Democratic PartyDianne FeinsteinDemocratic PartyAdam SchiffD+18.6D+8.4
Nebraska SenateNovember 5, 2024Republican PartyBen SasseRepublican PartyPete RickettsR+17.2R+38.3

Special elections, 1986-2012

The table below presents the results of special elections to Congress from 1986 to 2012. Contact Ballotpedia ateditor@ballotpedia.org for access to earlier data.

Results of special elections to Congress (1986-2012)
Election cycleTotal special electionsU.S. House electionsSeats changing partisan controlU.S. Senate electionsSeats changing partisan control
2011-20121111NoneNoneNone
2009-201015103 (2 Democratic gains; 1 Republican gain)52 (all Republican gains)
2007-200814123 (2 Republican gains; 1 Democratic gain)2None
2005-200612123 (all Democratic gains)NoneNone
2003-200466NoneNoneNone
2001-2002652 (all Democratic gains)11 (Republican gain)
1999-2000981 (Republican gain)11 (Democratic gain)
1997-199833NoneNoneNone
1995-19961191 (Republican gain)21 (Democratic gain)
1993-1994961 (Republican gain)33 (all Republican gains)
1991-19921072 (all Republican gains)31 (Democratic gain)
1989-19901081 (Democratic gain)2None
1987-198812123 (2 Democratic gains; 1 Republican gain)NoneNone
1985-1986881 (Republican gain)NoneNone
Total13611721 (11 Democratic gains; 10 Republican gains)199 (6 Republican gains; 3 Democratic gains)


Political context

Presidential election results in 2024 Senate states

The following table shows the 2024 presidential election margin of victory in percentage points for each state with a Senate election in 2024. Click [show] on the right to expand the table.

2024 Senate elections
StatePre-election incumbent2024 presidential margin of victory
ArizonaIndependentKyrsten SinemaTrump + 5.5
CaliforniaDemocratic PartyLaphonza ButlerHarris + 20.7
ConnecticutDemocratic PartyChristopher MurphyHarris + 14.5
DelawareDemocratic PartyThomas CarperHarris + 14.7
FloridaRepublican PartyRick ScottTrump + 13.1
HawaiiDemocratic PartyMazie HironoHarris + 23.1
IndianaRepublican PartyMike BraunTrump + 18.9
MassachusettsDemocratic PartyElizabeth WarrenHarris + 24.8
MarylandDemocratic PartyBenjamin CardinHarris + 27.9
MaineIndependentAngus KingHarris + 6.9
MichiganDemocratic PartyDebbie StabenowTrump + 1.4
MinnesotaDemocratic PartyAmy KlobucharHarris + 4.2
MissouriRepublican PartyJosh HawleyTrump + 18.4
MississippiRepublican PartyRoger WickerTrump + 24.3
MontanaDemocratic PartyJon TesterTrump + 19.9
North DakotaRepublican PartyKevin CramerTrump + 36.5
NebraskaRepublican PartyDeb FischerTrump + 20.5
New JerseyDemocratic PartyRobert MenendezHarris + 5.8
New MexicoDemocratic PartyMartin HeinrichHarris + 6.0
NevadaDemocratic PartyJacky RosenTrump + 3.1
New YorkDemocratic PartyKirsten GillibrandHarris + 11.8
OhioDemocratic PartySherrod BrownTrump + 11.3
PennsylvaniaDemocratic PartyRobert CaseyTrump + 1.8
Rhode IslandDemocratic PartySheldon WhitehouseHarris + 13.7
TennesseeRepublican PartyMarsha BlackburnTrump + 29.7
TexasRepublican PartyTed CruzTrump + 13.9
UtahRepublican PartyMitt RomneyTrump + 21.4
VirginiaDemocratic PartyTim KaineHarris + 5.2
VermontIndependentBernard SandersHarris + 31.5
WashingtonDemocratic PartyMaria CantwellHarris + 18.5
WisconsinDemocratic PartyTammy BaldwinTrump + 0.9
West VirginiaIndependentJoe ManchinTrump + 41.9
WyomingRepublican PartyJohn BarrassoTrump + 45.8

Senator's party vs. governor's party

In eight states with Senate seats up for election in 2024, the seat going into the election was held by a senator of a different party than the governor. Four seats held by Democratic senators in states with Republican governors were up. Four seats held by independents were up. No seats held by Republican senators in states with Democratic governors were up.

Senator's vs. Governor's party, 2022
StatePre-election Senate incumbentLast election MoV[39]Pre-election GovernorLast election MoV[39]
ArizonaGrey.pngKyrsten Sinema2.4Democratic PartyKatie Hobbs4.7
MaineGrey.pngAngus King19.1Democratic PartyJanet T. Mills42.4
MontanaDemocratic PartyJon Tester3.5Republican PartyGreg Gianforte12.8
NevadaDemocratic PartyJacky Rosen5.0Republican PartyJoe Lombardo1.5
OhioDemocratic PartySherrod Brown6.8Republican PartyMike DeWine25.0
VirginiaDemocratic PartyTim Kaine16.0Republican PartyGlenn Youngkin2.0
VermontGrey.pngBernie Sanders39.9Republican PartyPhil Scott47.0
West VirginiaGrey.pngJoe Manchin3.3Republican PartyJim Justice33.3

States with senators from different parties

Seven states had senators from different parties in the 118th Congress: Arizona, Maine, Montana, Ohio, Vermont, West Virginia, Wisconsin. Three of those states, Montana, Ohio, and Wisconsin had one Democratic and one Republican senator. Arizona and Vermont each had one Democratic senator and one independent senator, and West Virginia and Maine had one Republican senator and one independent senator.

2022 election party changes

In the2022 Senate election cycle, Democrats flipped one seat.

2020 election party changes

In the2020 Senate election cycle, Democrats flipped four seats and Republicans flipped one:

2018 election party changes

In the2018 Senate election cycle, Republicans flipped four seats and Democrats flipped two.

Media analysis of 2024 U.S. Senate elections

Effect of split-ticket voting

Senate Democrats may have lost their majority this cycle, but they did something that the party had never done in the age of Trump: win multiple Senate races in states the former and soon-to-be president carried.

The 2024 elections saw four Trump-won states also elect Democratic senators: Arizona, Nevada, Michigan and Wisconsin.

In the previous two presidential cycles, Democrats had never achieved this feat. In fact, since 2016, only one senator — Republican Susan Collins of Maine — won reelection in 2020 even as Joe Biden won her state. She outran Trump that year by seven points. That’s the same amount Jon Tester was able to outpace Harris by in Montana this year, proving that may be the modern max for any candidate.

If every state had once again gone the same way as the presidential contest, Republicans would have won a 57-seat majority instead of their 53-seat one. That makes a Democratic resurgence in 2026 or in 2028 more plausible — though that’s still a tall order given the seats Democrats need to defend.[41]

—Jessica Taylor, The Cook Political Report with Amy Walter (November 19, 2024)[42]

Ultimately, Democrats’ early money advantage and ability to define their GOP opponents may have been the crucial element. In every single battleground Senate race, the Republican candidate underperformed Trump’s margins and vote share, proving that the once-and-future president’s unique coalition isn’t automatically transferable to other downballot candidates — a dynamic evidenced in the 2018 and 2022 midterms as well.[41]

—Jessica Taylor, The Cook Political Report with Amy Walter (November 19, 2024)[43]

Even as President-elect Donald Trump swept every swing state, four of those battlegrounds are sending Democrats to the Senate. That’s the highest number of Senate-presidential ticket splits in 12 years, and a warning sign for Republicans as they try to protect and grow their ranks in 2026.[41]

—Ally Mutnick and Ursula Perano, Politico (November 12)[44]

Sens. Tammy Baldwin (D-Wis.) and Jacky Rosen (D-Nev.) and Reps. Elissa Slotkin (D-Mich.) and Ruben Gallego (D-Ariz.) won even as Trump swept their states.

Two major reasons: Trump voters splitting their tickets for Democratic Senate candidates or skipping the Senate races entirely.[41]

—Ally Mutnick and Ursula Perano, Politico (November 12)[45]

Four states that Republican Donald Trump carried in this month’s presidential election also elected Democratic senators. That may not seem like a lot, but it’s twice as many “mismatches” between states’ presidential and U.S. Senate results as in all Senate elections held in 2020, 2021 and 2022 combined. ...No states had mismatches in the other direction, electing Republican senators but picking Democrat Kamala Harris for president.[41]

—Drew DeSilver, Pew Research Center (November 26, 2024)[46]

Effect of campaign spending

The six presidential swing states Trump flipped this year have seen 19 Senate races since his first election. Republicans won just two of them: Sen. Ron Johnson’s 2022 reelection in Wisconsin and, now, McCormick.

One big reason for McCormick’s swing-state success: money.

He is the former CEO of the world’s largest hedge fund, boasting both deep personal wealth and a network of connected donors. McCormick’s allies formed a super PAC that spent over $50 million on his behalf. National Republicans spent even more. The race received more GOP spending than any Senate race beyond Ohio.

Other Republicans did not have that advantage. In Nevada and Wisconsin, the GOP was outspent in advertising by $20 to 25 million, according to the tracking firm AdImpact. In Arizona, it was $66 million.[41]

—Ally Mutnick and Ursula Perano, Politico (November 12)[47]


Congressional approval rating

Ballotpedia's congressional approval polling average:20% (November 25, 2025)

Results are updated daily at 9:30 a.m. EST and aggregated from the most recent polls from the sources listed in the methodology section below. Think we're missing something?Email us.


The congressional approval rating indicates public satisfaction in the job performance of the members of theUnited States Congress. It is the percentage of people polled who responded favorably toward the work of theU.S. Senate andHouse of Representatives.

Wave elections

See also:Wave elections (1918-2016)

In aJuly 2018 report, Ballotpedia defined wave elections as the 20 percent of elections in the last 100 years resulting in the greatest seat swings against the president's party. U.S. Senate waves from 1918 to 2016 are listed in the table below.

U.S. Senate wave elections
YearPresidentPartyElection typeSenate seats changeSenate majority[48]
1932HooverRPresidential-13D (flipped)
1958EisenhowerRSecond midterm-12D
1980CarterDPresidential-11R (flipped)
1946TrumanDFirst midterm-10R (flipped)
1942RooseveltDThird midterm-9D
2014ObamaDSecond midterm-9R (flipped)
1986ReaganRSecond midterm-8D (flipped)
2008George W. BushRPresidential-8D
1926CoolidgeRFirst midterm[49]-7R
1930HooverRFirst midterm-7R


See also

External links

Election coverage by office

Click the tiles below to navigate to 2024 election coverage:


Footnotes

  1. This number does not include the special election for a Senate seat in California, as that seat was also up for regular election.
  2. Siouxland News, "Nebraska's Ben Sasse resigning from US Senate," December 5, 2022
  3. Associated Press, "Sen. Dianne Feinstein of California, trailblazer and champion of liberal priorities, dies at age 90," September 29, 2023
  4. 4.04.1Three independents caucused with the Democratic Party. Another independent, Sen. Kyrsten Sinema, counted toward the Democratic majority for committee purposes.
  5. 5.05.1Two independents caucus with the Democratic Party.
  6. The map below also includes the seat held by Sen. Pete Ricketts (R-Neb.). That seat is up for special election in 2024.
  7. Tampa Bay Times, "Sen. Ben Sasse chosen as 13th UF president in unanimous vote of trustees," November 1, 2022
  8. Fox 42, "Sen. Ben Sasse has been confirmed as President of the University of Florida," November 9, 2022
  9. Siouxland News, "Nebraska's Ben Sasse resigning from US Senate," December 5, 2022
  10. Associated Press, "Sen. Dianne Feinstein of California, trailblazer and champion of liberal priorities, dies at age 90," Sept. 29, 2023
  11. NBC News, "Independent Sen. Kyrsten Sinema will not run for re-election in Arizona," March 5, 2024
  12. The Hill, "Manchin won’t seek reelection in West Virginia," November 9, 2023
  13. Laphonza Butler, "Sen. Laphonza Butler not running in 2024 after filling Dianne Feinstein's seat," October 19, 2023
  14. Butler was appointed to her Senate seat on Oct. 1, 2023, to fill the vacancy left by the death of Sen. Dianne Feinstein (D). Feinstein had previously announced her retirement from public office.
  15. Debbie Stabenow, "Senator Stabenow Announces She Will Not Seek Re-Election in 2024," January 5, 2023
  16. Politico, "Cardin not running for reelection," May 1, 2023
  17. Washington Post, "Democratic Sen. Tom Carper of Delaware won't seek reelection, opening up seat in liberal state," May 22, 2023
  18. Washington Post, "Mitt Romney says he will not seek a second term in the Senate," September 13, 2023
  19. Politico, "Braun to run for Indiana governor, opening Senate seat in 2024," November 30, 2022
  20. This number does not include the special election for a Senate seat in California, as that seat is also up for regular election.
  21. This number includes three independents
  22. Sinema won in 2018 as a Democrat.
  23. Democratic incumbent Sen. Dianne Feinstein defeated Democrat Kevin De Leon in the general election by a margin of 8.4%.
  24. Sen. Sinema changed her partisan affiliation from Democrat to Independent after the 2022 elections.
  25. 270towin, "Historical Timeline," accessed March 25, 2022
  26. 270towin, "California," accessed October 17, 2023
  27. 270towin, "Nebraska," accessed March 7, 2023
  28. Both general election candidates were Republicans.
  29. This race was unopposed.
  30. 30.030.1Both general election candidates were Democrats.
  31. Lamb won by a margin of 0.4 percentage points.
  32. Wild won by a margin of 0.2 percentage points.
  33. The state Board of Elections declined to certify the results of the2018 election following allegations of absentee ballot fraud.
  34. Collins won by 0.3 percentage points.
  35. This special election was called to fill the vacancy left by 2020 Congressman-electLuke Letlow (R), who died before being sworn in to Congress.
  36. Runoff MOV between two Republican candidates.
  37. Runoff MOV between two Democratic candidates.
  38. Runoff MOV between two Republican candidates.
  39. 39.039.1Margin of victory
  40. Sinema announced that she was leaving the Democratic Party on December 9, 2022.
  41. 41.041.141.241.341.441.5Note: This text is quoted verbatim from the original source. Any inconsistencies are attributable to the original source.
  42. [https://www.cookpolitical.com/analysis/senate/senate-overview/what-was-behind-return-senate-split-ticket-votingThe Cook Political Report with Amy Walter, "What Was Behind the Return of Senate Split-Ticket Voting," November 19, 2024
  43. [https://www.cookpolitical.com/analysis/senate/senate-overview/what-was-behind-return-senate-split-ticket-votingThe Cook Political Report with Amy Walter, "What Was Behind the Return of Senate Split-Ticket Voting," November 19, 2024
  44. Politico, "Republicans won big in the Senate. A warning lurks in the purple states." November 12, 2024
  45. Politico, "Republicans won big in the Senate. A warning lurks in the purple states." November 12, 2024
  46. Pew Research Center, "2024 elections show more partisan splits between states’ presidential and Senate votes than in recent past," November 26, 2024
  47. Politico, "Republicans won big in the Senate. A warning lurks in the purple states." November 12, 2024
  48. Denotes the party that had more seats in the U.S. Senate following the election.
  49. Calvin Coolidge's (R) first term began in August 1923 after the death of President Warren Harding (R), who was first elected in 1920. Before he had his first midterm in 1926, Coolidge was re-elected as president in 1924.
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