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Which party will win the Senate in 2026?

Which party will win the Senate in 2026?

56%

Republican Party

$3M Vol.

$339K Liq.

67

Ends in 5 months

Which party will win the House in 2026?

Which party will win the House in 2026?

82%

Democratic Party

$7M Vol.

$571K Liq.

1

Ends in 5 months

Iowa Democratic Senate Primary Margin of Victory

Iowa Democratic Senate Primary Margin of Victory

99%

Turek 20–30%

$5.2K Vol.

$10.6K Liq.

Texas Senate Republican Primary Runoff Margin of Victory (Larger Brackets)

Texas Senate Republican Primary Runoff Margin of Victory (Larger Brackets)

99%

Paxton 25–30%

$137K Vol.

$55.6K Liq.

4

South Carolina Senate Republican Primary: First Round Margin of Victory

South Carolina Senate Republican Primary: First Round Margin of Victory

42%

Graham 20–30%

$21 Vol.

$1.7K Liq.

Ends in about 22 hours

How many Republican Senators not running in 2026?

How many Republican Senators not running in 2026?

72%

7

$76.2K Vol.

$51.1K Liq.

5

Ends in 3 months

Will Gérard Larcher be reelected as President of the French Senate?

Will Gérard Larcher be reelected as President of the French Senate?

87%

$112 Vol.

$4.6K Liq.

9

Ends in 4 months

Next Brazil Senate Election: Most Seats Held

Next Brazil Senate Election: Most Seats Held

81%

PL

$14.2K Vol.

$37.6K Liq.

3

Ends in 4 months

Next Brazil Senate Election: Most Seats Won

Next Brazil Senate Election: Most Seats Won

73%

PL

$256K Vol.

$33.6K Liq.

9

Ends in 4 months

Next Senate Majority Leader?

Next Senate Majority Leader?

44%

John Thune

$79.6K Vol.

$234K Liq.

2

Ends in 7 months

Will the GOP use 'Nuclear Option' to break filibuster by...?

Will the GOP use 'Nuclear Option' to break filibuster by...?

15%

December 31, 2026

$560K Vol.

$1.3K Liq.

29

Will Republicans lose a seat in the US Senate for any state Trump won in 2024?

Will Republicans lose a seat in the US Senate for any state Trump won in 2024?

84%

$2.8K Vol.

$1.9K Liq.

2

Ends in 5 months

Texas Senate Republican Primary Runoff Margin of Victory

Texas Senate Republican Primary Runoff Margin of Victory

100%

Paxton 9%+

$260K Vol.

$112K Liq.

2

Republican Senate seats after the 2026 midterm elections?

Republican Senate seats after the 2026 midterm elections?

27%

≤47

$3M Vol.

$365K Liq.

7

How many Democratic Senate Incumbents will not win their Primary?

How many Democratic Senate Incumbents will not win their Primary?

79%

0

$4.8K Vol.

$8.4K Liq.

Turnout in Texas Senate Republican Primary Runoff

Turnout in Texas Senate Republican Primary Runoff

97%

1.2–1.5M

$157K Vol.

$67.3K Liq.

3

Peru Senate Election Winner

Peru Senate Election Winner

99%

FP

$102K Vol.

$49.4K Liq.

6

Romanian parliament dissolved by July 31?

Romanian parliament dissolved by July 31?

5%

$67.7K Vol.

$25.4K Liq.

1

Ends in 21 days

Iowa Senate Election Winner

Iowa Senate Election Winner

61%

Republican

$121K Vol.

$24.0K Liq.

1

Ends in 5 months

How many Republican Senate Incumbents will not win their Primary?

How many Republican Senate Incumbents will not win their Primary?

60%

2

$6.3K Vol.

$14.5K Liq.

Frequently Asked Questions

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Polymarket currently hosts 107 active markets for Senates that lets you track or trade on predictions like “Which party will win the Senate in 2026?”. Whether you are tracking widely debated events or niche outcomes, the platform aggregates real-time odds based on over $14.2M in trading volume, providing a comprehensive view of fan and investor sentiment.

Each polymarket is a yes/no question, like “Will Republicans lose a seat in the US Senate for any state Trump won in 2024?”. You buy shares in “yes” or “no” outcomes. Prices reflect crowd-sourced odds and probabilities. For example, if yes is at 30 cents, that’s a 30% chance. Markets resolve based on official results. For multi-outcome events, like “Which party will win the House in 2026?,” you simply trade on the specific outcome you think will win.

As of today, the most active market is “Which party will win the House in 2026?,” where the crowd is currently assigning a 82% chance to Democratic Party. These odds update in real-time as new information emerges and users trade, offering a dynamic snapshot of what the market believes will happen compared to traditional bookmaker odds.

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