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Events
GroupPOLYMARKET

Senate Combo: Ohio, Iowa, Maine

Senate Combo: Ohio, Iowa, Maine
Vol

PM $23.3K

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Events

1

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Markets

8

Current odds

Snapshot from

As of Oct 20, 2026, 6:00 PM UTC, the highest-priced outcome on Polymarket is Dems sweep at 28%.

Polymarket

  1. Dems sweep28%
  2. Dems OH & ME, Reps IA25%
  3. Reps sweep18.5%
  4. Dems OH & IA, Reps ME15.5%
  5. Reps OH & ME, Dems IA7.8%

Yes prices. They are not order quotes; check each platform's rules, fees and live prices before trading.

AI Analysis

Trader mode: Market mechanics, assumptions and risks

PM $23.3K

Reported volume · provider units

8

Saved contracts

0

Same-question pairs

Source snapshot: Oct 20, 2026, 6:00 PM UTC

About This Event

This market will resolve according to the outcome of the United States Senate general elections in Ohio, Iowa, and Maine (including the special election in Ohio) that are currently scheduled for November 3, 2026, inclusive of any potential runoffs. A candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. If the results of one of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins one of these elections, this market will resolve to "Other". For purposes of this market, a "sweep" is when a party wins all races. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called the relevant elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.

AI-generated analysis based on market data. Not financial advice.

AI-written background. References identify the evidence used; Wikipedia links under Learn More are additional reading. Prices and provider rules are dated snapshots. This is not financial advice.

Prices are catalog snapshots and may have changed. Check each market's rules and observation time.

KalshiPolitics
Battleground Senate Combo: which states will Democrats win?

Battleground Senate Combo: which states will Democrats win?

K 13.8K contracts
Will Democrats win all 5?Yes 40%
Will Democrats win Maine, Michigan, New Hampshire, Alaska?Yes 10%
Will Democrats win Michigan, New Hampshire, Ohio?Yes 7%
+29 moreNext deadline Nov 3, 2027 UTC
KalshiPolitics
Tossup Senate Race Combo: which states will Democrats win?

Tossup Senate Race Combo: which states will Democrats win?

K 75.8K contracts
Will Democrats win all four?Yes 29%
Will Democrats win Texas, Alaska, Ohio?Yes 16.5%
Will Democrats win Alaska, Ohio?Yes 9.2%
+13 moreNext deadline Nov 3, 2027 UTC
PolymarketPolitics
Closest Senate Race?

Closest Senate Race?

PM $34.8K
Will Iowa be the closest Senate race in 2026?Yes 16.4%
Will Kansas be the closest Senate race in 2026?Yes 15.7%
Will Texas be the closest Senate race in 2026?Yes 13.5%
+32 moreNext deadline Nov 4, 2026 UTC
KalshiPolitics
Closest Senate race in 2026?

Closest Senate race in 2026?

K 1.05M contracts
Will Texas have the smallest margin of victory in 2026 United States Senate elections?Yes 13.5%
Will Iowa have the smallest margin of victory in 2026 United States Senate elections?Yes 13.5%
Will Kansas have the smallest margin of victory in 2026 United States Senate elections?Yes 12.5%
+17 moreNext deadline Jan 10, 2027 UTC
KalshiPolitics
Bluest state to elect a Republican senator in 2026?

Bluest state to elect a Republican senator in 2026?

K 175.6K contracts
Will Maine be the state with the highest 2024 Harris-minus-Trump presidential margin among states where a Republican candidate wins a 2026 U.S. Senate election?Yes 37.5%
Will Florida be the state with the highest 2024 Harris-minus-Trump presidential margin among states where a Republican candidate wins a 2026 U.S. Senate election?Yes 35%
Will Ohio be the state with the highest 2024 Harris-minus-Trump presidential margin among states where a Republican candidate wins a 2026 U.S. Senate election?Yes 7.5%
+17 moreNext deadline Apr 3, 2027 UTC
PolymarketPolitics
Which Senate races will be within 5%?

Which Senate races will be within 5%?

PM $117.5K
Will the Mississippi 2026 Senate race be within 5%?Yes 72%
Will the Texas 2026 Senate race be within 5%?Yes 70.5%
Will the Michigan 2026 Senate race be within 5%?Yes 70%
+16 moreNext deadline Nov 4, 2026 UTC

Market Insights

Price gaps of 2 pp+

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Same-question pairs

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No outcomes on this page have been reviewed as the same question on both platforms yet.

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