Market icon
Elections·Congress

How many Republican Senators not running in 2026?

Market icon
Elections·Congress

How many Republican Senators not running in 2026?

6 47%

7 33%

5 6.4%

8 6.4%

Polymarket

$40,032 Vol.

6 47%

7 33%

5 6.4%

8 6.4%

Polymarket

$40,032 Vol.

<5

$0 Vol.

1%

5

$14,349 Vol.

6%

6

$25,683 Vol.

45%

7

$0 Vol.

35%

8

$0 Vol.

6%

9

$0 Vol.

1%

10

$0 Vol.

1%

11

$0 Vol.

1%

12+

$0 Vol.

1%

The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.

The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026.

This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026.

For the purposes of this market, a member may be considered not to seek reelection if:
• They publicly announce they are retiring from Congress and will not run for reelection to their current seat
• They choose to run for a different elected office in 2026 instead of running for reelection to their current seat
• They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus)

Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market.

This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026.

The resolution source for this market will be a consensus of credible reporting.
Volume
$40,032
End Date
Aug 31, 2026
Market Opened
Dec 12, 2025, 6:43 PM ET

Resolver

0x2F5e3684c...
The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.
The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.

Trader consensus on Polymarket prices a tight race between 6 (44%) and 7 (36.5%) Republican senators not seeking re-election among the 20 Class II seats up in 2026, driven by historical base rates of 5-8 retirements per cycle for the majority party and profiles of older incumbents like Mike Crapo, Jerry Moran, and Jim Risch. Deb Fischer's October 30 announcement marks the first confirmed retirement, establishing a low baseline amid post-election stability following GOP Senate gains. The narrow spread reflects uncertainty over decisions by John Cornyn, Lindsey Graham, and Susan Collins, influenced by leadership transitions and Trump administration alignments. Additional announcements from these figures by early 2025 could shift odds toward 7 or higher, while sustained re-election filings would reinforce 6.

Experimental AI-generated summary referencing Polymarket data · Updated

Related

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Will the number of Republican House members who retire in 2026 be between 36 and 39 inclusive?

40%
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Will the number of Democratic House members who retire in 2026 be between 24 and 27 inclusive?

41%
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Will the Republican Party hold 47 or fewer Senate seats after the 2026 midterm elections?

24%

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Frequently Asked Questions

"How many Republican Senators not running in 2026?" is a prediction market on Polymarket with 9 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "6" at 45%, followed by "7" at 35%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 45¢ implies that the market collectively assigns a 45% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "How many Republican Senators not running in 2026?" has generated $40K in total trading volume since the market launched on Dec 12, 2025. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "How many Republican Senators not running in 2026?," browse the 9 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "How many Republican Senators not running in 2026?" is "6" at 45%, meaning the market assigns a 45% chance to that outcome. The next closest outcome is "7" at 35%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "How many Republican Senators not running in 2026?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.