United States Senate elections, 2026
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November 3, 2026 |
Elections to the U.S. Senate will be held on November 3, 2026, and 33 of the 100 seats are up for regular election. Special elections may be held to fill vacancies that occur in the 119th Congress.
As of December 2024, there were 13 seats held by Democrats and 20 seats held by Republicans up for election in 2026. President Donald Trump (R) won 21 of the states holding Senate elections in 2026 in the 2024 presidential election and former Vice President Kamala Harris (D) won 12. In 2026, Democrats will be defending two states that Trump won in 2024: Georgia and Michigan. Republicans will be defending one seat in a state Harris won: Maine.
Of the 20 Republican-held seats, four were last decided in 2020 by a margin of less than 10 percentage points: Iowa (6.6), Maine (8.6), North Carolina (1.8), and Texas (9.6). Of the 13 Democrat-held seats, five were decided by a margin of less than 10 percentage points: Colorado (9.3), Georgia (1.2), Michigan (1.7), Minnesota (5.3), and New Mexico (6.1).
Those elected to the U.S. Senate in the 33 regular elections on November 3, 2026, will begin their six-year terms on January 3, 2027.
Partisan balance
Republicans won a 53-47[1] majority as a result of the 2024 elections. As a result of the elections, Republicans gained four seats in Montana, Ohio, Pennsylvania, and West Virginia. Democrats gained one seat in Arizona. Democrats held a 50-49 majority in the U.S. Senate heading into the 2024 elections.[2]
U.S. Senate Partisan Breakdown | |||
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Party | As of November 5, 2024 | After the 2024 Election | |
Democratic Party | |||
Republican Party | |||
Independent | |||
Total | |
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The chart below shows historical partisan breakdown information for the chamber.
The chart below shows historical partisan breakdown information for the chamber.
Seats up for election
There are 33 U.S. Senate seats up for regular election in 2026—13 seats held by Democrats and 20 held by Republicans as of July 2023.
The map below shows what seats are up for election and the current incumbent in each race.
Table last updated: July 25, 2023
Seats that changed party hands in 2020
- See also: United States Senate elections, 2020
In 2020—the last time these 33 seats were up for regular election—five seats changed party hands. Democrats picked up four seats and Republicans picked up one seat.
Senate seats that changed party hands, 2020 | ||||||
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State | Pre-election incumbent | 2020 winner | Margin of victory (percentage points) | |||
Alabama | ![]() |
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20.4 | |||
Arizona (special) | ![]() |
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2.4 | |||
Colorado | ![]() |
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9.3 | |||
Georgia | ![]() |
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1.2 | |||
Georgia (special) | ![]() |
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2.0 |
List of candidates
The table below contains a list of all candidates for the U.S. Senate in 2026. The table is fully searchable by candidate, party and candidacy 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.
Incumbents not seeking re-election
Historical comparison
The following table includes figures on Democratic and Republican members of Congress who either left office during their term or announced that they would not seek re-election for each election year since 2012.
Outgoing members of Congress, 2012-2026 | |||||||
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Year | Chamber | Democrats not seeking re-election | Republicans not seeking re-election | Total not seeking re-election | Democrats leaving office early | Republicans leaving office early | Total leaving office early |
2026 | |||||||
U.S. Senate | 2 | 1 | 3 | 0 | 2 | 2 | |
U.S. House | 1 | 2 | 3 | 0 | 1 | 1 | |
Total | 3 | 2 | 6 | 0 | 3 | 3 | |
2024 | |||||||
U.S. Senate | 4 | 2 | 8[5] | 1 | 1 | 2 | |
U.S. House | 24 | 21 | 45 | 4 | 6 | 10 | |
Total | 28 | 23 | 53 | 5 | 7 | 12 | |
2022 | |||||||
U.S. Senate | 1 | 5 | 6 | 1 | 1 | 2 | |
U.S. House | 31 | 18 | 49 | 6 | 8 | 14 | |
Total | 32 | 23 | 55 | 7 | 9 | 16 | |
2020 | |||||||
U.S. Senate | 1 | 3 | 4 | 0 | 1 | 1 | |
U.S. House | 9 | 26 | 36[6] | 3 | 8 | 11 | |
Total | 10 | 29 | 40 | 3 | 9 | 12 | |
2018 | |||||||
U.S. Senate | 0 | 3 | 3 | 1 | 2 | 3 | |
U.S. House | 18 | 34 | 52 | 3 | 14 | 17 | |
Total | 18 | 37 | 55 | 4 | 16 | 20 | |
2016 | |||||||
U.S. Senate | 3 | 2 | 5 | 0 | 0 | 0 | |
U.S. House | 16 | 24 | 40 | 2 | 5 | 7 | |
Total | 19 | 26 | 45 | 2 | 5 | 7 | |
2014 | |||||||
U.S. Senate | 5 | 2 | 7 | 3 | 2 | 5 | |
U.S. House | 16 | 25 | 41 | 3 | 6 | 9 | |
Total | 21 | 27 | 48 | 6 | 8 | 14 | |
2012 | |||||||
U.S. Senate | 6 | 3 | 10[7] | 0 | 0 | 0 | |
U.S. House | 23 | 20 | 43 | 4 | 1 | 5 | |
Total | 29 | 23 | 53 | 4 | 1 | 5 |
2024 elections
Republicans won control of the U.S. Senate, winning a 53-45 majority with two independents as a result of the November 5, 2024 elections.[8]
As a result of the elections, Republicans gained four seats in Montana, Ohio, Pennsylvania, and West Virginia. Democrats gained one seat in Arizona. 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[9] was up for a special election. Democrats were defending three Senate seats, in Montana, Ohio, and West Virginia, in states Donald Trump (R) won in the 2020 presidential election. Republicans were not defending any Senate seats in states Joe 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 identified 15 races (41.2%) as general election battlegrounds 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 by Kyrsten 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 in 2020.[10] The other special election was held to fill the rest of the six-year term that Dianne 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.[11] Ballotpedia identified 15 races as general election battlegrounds in 2024.
These battleground races were selected using the following criteria. For more information on our methodology, click here:
- the results of the 2020 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 the Cook Political Report, Sabato's Crystal Ball, and Inside Elections with Nathan Gonzales rated the race.
Important dates and deadlines
This section will provide important dates throughout the 2026 congressional election cycle, including filing deadlines and primaries when available.
Congressional approval rating
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 the United States Congress. It is the percentage of people polled who responded favorably toward the work of the U.S. Senate and House of Representatives.
See also
- United States Congress elections, 2026
- United States House of Representatives elections, 2026
- United States Congress
- United States Senate
- United States House of Representatives
- 119th United States Congress
External links
Footnotes
- ↑ Two independents caucus with the Democrats for majority purposes
- ↑ Three independents caucused with the Democratic Party. Another independent, Sen. Kyrsten Sinema, counts toward the Democratic majority for committee purposes.
- ↑ 3.0 3.1 Three independents caucused with the Democratic Party. Another independent, Sen. Kyrsten Sinema, counted toward the Democratic majority for committee purposes.
- ↑ 4.0 4.1 Two independents caucus with the Democratic Party.
- ↑ Includes Sens. Kyrsten Sinema (I) and Joe Manchin (I), who did not seek re-election.
- ↑ Includes Rep. Justin Amash (L), who did not seek re-election.
- ↑ Figure includes Sen. Joe Lieberman (I-Conn.).
- ↑ Two independents-Sens. Angus King and Bernie Sanders-caucus with the Democratic Party.
- ↑ This number does not include the special election for a Senate seat in California, as that seat was also up for regular election.
- ↑ Siouxland News, "Nebraska's Ben Sasse resigning from US Senate," December 5, 2022
- ↑ Associated Press, "Sen. Dianne Feinstein of California, trailblazer and champion of liberal priorities, dies at age 90," September 29, 2023
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