National Outcomes: 2026 Senate & House Control Odds | Polymarket

/

Home Sports Politics Crypto Weather Tech Culture Econ

Polymarket Prediction Hub

Overview PolyMap Key Races State by StateNational Outcomes Top Issues Local Races Downballot Race PropsAll

National Outcomes

The World's Largest Prediction Market™

Get the app

Markets

Sports Esports Politics Crypto Weather Tech Culture Economics

Support

Help Center Contact us Learn News

Company

Rewards APIs Institutional Careers Press

PM US Tech © 2026·Privacy·Terms of Use

Polymarket operates globally through separate legal entities. Polymarket US is operated by QCX LLC d/b/a Polymarket US, a CFTC-regulated Designated Contract Market. Trading involves substantial risk of loss. See our Terms of Service & Privacy Policy.

National Outcomes: 2026 Senate & House Control Odds | Polymarket

/

Overview PolyMap Key Races State by StateNational Outcomes Top Issues Local Races Downballot Race PropsAll

National Outcomes

National Outcomes

U.S House Midterm Winner

Democratic Party

1.09x

Republican Party

10.87x

2 markets

U.S Senate Midterm Winner

Democratic Party

1.62x

Republican Party

2.56x

2 markets

2026 Midterms: Balance of Power

Democrats Sweep

1.61x

D House, R Senate

3.33x

4 markets

2026 Midterms: Republican Senate Seats?

48

6.67x

47

6.67x

6 markets

2026 Midterms: Republican House Seats?

185+

1.16x

180+

1.18x

6 markets

2026 Midterms: House Popular Vote Winner?

Democratic Party

1.03x

Republican Party

20.0x

2 markets

Which Party Will Hold More Governorships After the Midterms?

Democratic Party

1.49x

Republican Party

4.17x

3 markets

2026 Midterms: House Popular Vote Margin of Victory

Democratic Party 8-10%

3.57x

Democratic Party 10-12%

4.35x

6 markets

How Many Republican Governors After the Midterms?

22-23

2.56x

24-25

4.76x

6 markets

Popular Midterms markets

U.S House Midterm Winner

U.S Senate Midterm Winner

Texas Senate Election Winner