In the 2026 United States Senate elections, 35 seats are up for election, including regularly scheduled elections and special elections to fill unexpired terms. This includes 22 seats held by Republicans and 13 by Democrats (including two independents who caucus with Democrats).
Key senators up for re-election in 2026 include:
Special elections will also be held to fill the remaining two years of the terms of:
Other retiring senators include Mitch McConnell (R-KY), Dick Durbin (D-IL), Tina Smith (D-MN), and Cynthia Lummis (R-WY). Independent senators Angus King (I-ME) and Bernie Sanders (I-VT) are not up for re-election in 2026.
part of the U.S. elections held November 3, 2026
Factsheet
Country United States
Country United States
Wikipedia
en.wikipedia.org › wiki › 2026_United_States_Senate_elections
2026 United States Senate elections - Wikipedia
14 minutes ago - Ohio voters will elect a candidate to serve the remaining two years of former Senator JD Vance's unexpired term; Vance resigned in 2025 to become vice president of the United States. All 33 Class 2 Senate seats and two Class 3 seats are up for election in 2026.
270toWin.com
270towin.com › 2026-senate-election
2026 Senate Election Interactive Map - 270toWin
Democrats can retake control with a net gain of four seats. This 3-part Senate map lets you view the current Senate, make a forecast for the 2026 Senate elections, and see the composition of the 2027 Senate based on those predictions.
Videos
01:03
Joni Ernst announces she will not seek re-election in 2026 - YouTube
06:06
Democratic Rep. Jerry Nadler of New York won't seek reelection ...
05:20
The five Senate seats most likely to flip in 2026 | Morning in ...
Ahead of the highly anticipated midterms in 2026, which ...
02:56
Growing number of lawmakers running for different offices in 2026 ...
01:37
McConnell says ‘filibuster will stand’ as GOP seizes Senate ...
Ballotpedia
ballotpedia.org › United_States_Congress_elections,_2026
United States Congress elections, 2026 - Ballotpedia
Five of the Senate's six non-voting members are also up for election. Heading into the 2026 general elections, Republicans control both chambers of Congress. They hold a 53–45 majority in the Senate, while two independents caucus with the Democrats, effectively giving the Democrats 47 votes ...
U.S. Senate
senate.gov › senators › Class_II.htm
U.S. Senate: Class II - Senators Whose Terms of Service Expire in 2027
Class II terms run from the beginning of the 117th Congress on January 3, 2021, to the end of the 119th Congress on January 3, 2027. Senators in Class II were elected to office in the November 2020 general election, unless they took their seat through appointment or special election · Article ...
Ballotpedia
ballotpedia.org › United_States_Senate_elections,_2026
United States Senate elections, 2026 - Ballotpedia
Two special elections will also happen on November 3, 2026. One special election is to fill the last two years of the six-year term that Marco Rubio (R-Fla.) was elected to in 2022. The other special election is to fill the last two years of the six-year term that J.D. Vance (R-Ohio) was elected to in 2022. Those elected to the U.S. Senate in the regularly scheduled elections on November 3, 2026, will begin their six-year terms on January 3, 2027.
Race to the WH
racetothewh.com › senate › 26
Predictions for the Senate - 2026 Midterms - Updated Daily — Race to the WH
Republicans, on the other hand, will be primarily focused on defense. However, they have two genuine opportunities to flip a seat. Georgia Senator Jon Ossoff is up for re-election and could be ...
NBC News
nbcnews.com › politics › 2026-election › 10-senate-races-will-decide-balance-power-2026-rcna248276
The 10 Senate races that will decide the balance of power in 2026
2 weeks ago - Susan Collins, R-Maine, and Jon Ossoff, D-Ga., are two of the most vulnerable senators up for re-election in 2026.Getty Images
Council for a Livable World
livableworld.org › home › an early look at the 2026 senate elections
An Early Look at the 2026 Senate Elections - Council for a Livable World
May 9, 2025 - Georgia: The state shocked the political world in 2020 when it elected two Democrats to the Senate, including then-33-year-old Sen. Jon Ossoff (D), who was backed by the Council and who is up for reelection in 2026. Republicans pressed outgoing Gov.
270toWin.com
270towin.com › 2026-senate-election-predictions
2026 Senate Election Forecast Maps - 270toWin
The U.S. Senate has 53 Republicans and 47 Democrats (including two independents). There are 35 seats up in 2026 - including special elections in Florida and Ohio - of which 23 are held Republicans.
Fox News
foxnews.com › politics › republican-sen-cynthia-lummis-not-seek-re-election-2026-citing-energy-required
Wyoming's Cynthia Lummis won't seek re-election for US Senate seat in 2026 | Fox News
Republican Cynthia Lummis will not be seeking re-election for her U.S. Senate seat in 2026, saying it's been "an incredible honor to represent Wyoming" in a statement shared on X.
Published 3 weeks ago
Center for Politics
centerforpolitics.org › home › 2026 senate
2026 Senate - Sabato's Crystal Ball
October 23, 2025 - To read recent stories on the race for the Senate, click here. 2026 Senate ratings Updated Oct. 23, 2025 2026 Senate elections Post-2024 control of Senate seats
Wikipedia
en.wikipedia.org › wiki › 2026_United_States_elections
2026 United States elections - Wikipedia
3 days ago - Two special elections will be held to fill the unexpired terms of senators who vacated their seats during the 119th Congress: Florida Class 3: Republican Marco Rubio resigned his seat on January 20, 2025, to become U.S. secretary of state under the second Trump administration. Ashley Moody was appointed by Florida governor Ron DeSantis to fill the seat until the special election, which will take place concurrently with the regularly scheduled 2026 elections.
Thompson Coburn LLP
thompsoncoburn.com › home › insights › an early look at 2026 senate midterms
An Early Look at 2026 Senate Midterms | Thompson Coburn LLP
November 22, 2025 - ... North Carolina’s Senate race has been a toss-up for months, but Senator Thom Tillis’s shock retirement during the final consideration of the One Big Beautiful Bill Act gives Democrats an opening. Democrats have landed their top recruit of the 2026 cycle: former Governor Roy Cooper.
NCSL
ncsl.org › elections-and-campaigns › 2026-legislative-races-by-state-and-chamber
2026 Legislative Races by State and Chamber
Legislative races in 46 states will be conducted in November 2026. These include races in 88 of the nation's 99 legislative chambers.
UPI
upi.com › Top_News › US › 2026 › 01 › 06 › 2026-midterm-elections-house-senate-preview › 4231767711258
2026 midterm preview: Key races in U.S. House, Senate - UPI.com
3 days ago - Thom Tillis, R-N.C. Tillis is retiring at the end of the term. The Democratic Party has tapped former Sen. Sherrod Brown to attempt a return to the chamber in 2026 after he lost a bid for re-election in 2024 to Republican Bernie Moreno.
Ballotpedia
ballotpedia.org › List_of_U.S._Senate_incumbents_who_are_not_running_for_re-election_in_2026
List of U.S. Senate incumbents who are not running for re-election in 2026 - Ballotpedia
Information on U.S. House retirements from the 2026 election cycle ... Nine U.S. Senate incumbents—four Democrats and five Republicans—from seven states are not seeking re-election in the 2026 election cycle.
Roll Call
rollcall.com › home › a year and a half out, these are the most vulnerable senators of the 2026 cycle
These are the most vulnerable senators of the 2026 election cycle
May 8, 2025 - Thom Tillis, left, and Bill Cassidy ... senators up for reelection next year, either in a primary or general election. (Tom Williams/CQ Roll Call file photo) By Mary Ellen McIntire and Daniela Altimari Posted May 6, 2025 at 5:00am · Our initial ...
Wikipedia
en.wikipedia.org › wiki › 2026_United_States_Senate_election_in_Maine
2026 United States Senate election in Maine - Wikipedia
8 hours ago - Incumbent Republican Senator Susan Collins has stated that she intends to run for re-election for a sixth term, though she has not formally launched a campaign. This will be the only Republican-held Senate seat up for election in 2026 in a state ...
Reddit
reddit.com › r/askpolitics › with the 2026 senate elections what are the likelihoods of the republicans holding it?
r/Askpolitics on Reddit: With the 2026 Senate Elections what are the likelihoods of the Republicans holding it?
December 21, 2024 -
I primarily want to see what those on the left see as the possible paths to control of the Senate.
If you think there is a good chance why? What seats do you think will be flipped?
If you think there is a bad chance why? Do you think there will be any more gains by the Republicans? Will the Democrats still gain?
Top answer 1 of 73
77
On the one hand, there will be two years of Trumpism, which should be a major boon for the dems. On the other hand, they are entirely incapable of effective campaigning, so it's likely that their gains will be extremely limited. Plus, if Musk does manage to bully enough republicans into getting a government shutdown from now until the 20th, it will be a major blow to the democrats, because they will gey blamed for it, reality be damned. Honestly, I think it's basically just a question of how bad of a job democrats do at avoiding being somehow blamed for the inevitable massive damage Trump's policies cause.
2 of 73
32
Possible opportunities for the GOP: GA (Ossoff won by a nose, the state is purple) Possible opportunities for Dems: ME if Collins does not run again (she is 74 years old and her seat will likely go blue whenever she decides to retire), NC (Tillis barely won in 2020 with a plurality and the state demography is shifting into a purple direction) Other than those, it looks like a fairly stable map.
Roll Call
rollcall.com › home › seven and counting? tally of open senate seats continues to climb
Seven and counting? Tally of open Senate seats continues to climb - Roll Call
July 2, 2025 - Collins’ decision is more important to her party than her other colleagues’ plans, because she might be the only Republican who can win a Senate election in Maine in 2026. Maine is the only state represented by a Republican senator where Democrat Kamala Harris finished ahead of Trump last fall.