Prediction markets / Midterms / Control of Congress

Closest Senate race in 2026

Kansas17¢

Iowa16¢

Texas16¢

LIVE

MAX

Select a contract

Kansas

17¢

Iowa

16¢

Texas

16¢

Maine

10.0¢

Michigan

8.1¢

Timeline

Trading hours

24 hours a day, except Thursday 3AM-5AM ET

Event day

November 3, 2026

Contract resolves

Determines the outcome of the contract

Payout

Usually within 1 hour of event resolution

About

What will be the Closest Senate race in 2026Margin of victory is calculated as the absolute percentage point difference between first and second place finishers. For two-candidate races, this is winner's percentage minus runner-up's percentage. For multi-candidate races, only the gap between first and second counts. For ranked choice/instant runoff elections, the margin from the final round is used.If official results aren't available by the deadline but at least 95% of expected vote is counted, preliminary results are used. In case of identical margins (tied to the hundredth of a percentage point), tied options split the payout equally. Postponed elections or those without sufficient results by the deadline resolve to No.Get $1 for every contract you own if your prediction is correct. Or close your position before the event resolves. Additional fees apply. Read the full contract terms and conditions

Trading prohibitions

Persons who are employed by any of the Source Agencies are not permitted to trade on the Contract.
Persons who hold any material, non-public information on the Underlying are not permitted to trade on the Contract.

PA-16 House winner

Iowa 04 House General Election: voter turnout

Illinois 09 House General Election: voter turnout

ID-02 House winner

California 06 House General Election: voter turnout

Party to win the NY-17 House race

Florida's 20th District margin of victory

California's 40th District margin of victory

NC-04 House winner

California's 30th District margin of victory

Texas's 24th District margin of victory

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Live data is for informational purposes only. It maybe delayed or incorrect.

Event contracts are offered by Robinhood Derivatives, LLC through either KalshiEX LLC, ForecastEX, LLC, Rothera Exchange and Clearing LLC, or North American Derivatives Exchange, Inc.