How many Senate and House seats will Republicans have after the midterms?

As of Tue, 20 Oct 2026 12:22:09 UTC, Polymarket traders price ≤46 and ≤192 (27.9%), 47–49 and 193–207 (27.7%), ≤46 and 193–207 (12.0%). The market has $49K in volume and closes on Wed, 04 Nov 2026.

Updated: Tue, 20 Oct 2026 12:22:09 UTC

Current odds

Outcome	Chance	Yes price	No price
≤46 and ≤192	27.9%	27.9¢	72.1¢
47–49 and 193–207	27.7%	27.7¢	72.3¢
≤46 and 193–207	12.0%	12.0¢	88.0¢
50–52 and 208–222	11.8%	11.8¢	88.2¢
47–49 and ≤192	8.6%	8.6¢	91.3¢
50–52 and 193–207	8.5%	8.5¢	91.5¢
≥53 and 208–222	5.9%	5.9¢	94.0¢
47–49 and ≥208	5.0%	5.0¢	95.0¢
50–52 and ≤192	2.1%	2.1¢	97.9¢
≥53 and ≥223	1.6%	1.6¢	98.4¢
50–52 and ≥223	0.6%	0.6¢	99.4¢
≥53 and ≤207	0.5%	0.5¢	99.5¢
≤46 and ≥208	0.1%	0.1¢	99.9¢

Market details

Venue: Polymarket
Volume: $49K
Liquidity: $203K
Closes: Wed, 04 Nov 2026

Resolution rules

The 2026 midterm elections are scheduled to be held on November 3, 2026. This market will resolve according to the combined outcome of the Republican Party’s seat count in the US House of Representatives and the US Senate as a result of the 2026 midterm elections. The Senate seat count includes all regular and special Senate elections that determine representation in the upcoming 120th Congress and are scheduled to take place in November 2026 as of October 31, 2026. Vacant Senate seats for which no election or special election to fill the seat is scheduled to take place in November 2026 as of October 31, 2026 will be treated as held by the party affiliation of the most recent member to hold that seat. The House seat count includes all House elections in the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th Congress. Where a Senate or House seat is decided by a runoff, the runoff result will determine attribution of that seat, even if it takes place after November 2026. For seats contested in the specified election, seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation, or vacates their seat, between election day and the formal organization of Congress, the seat is attributed to the party under which the member was elected. For seats not contested in the specified election, seats are attributed to the party that holds the seat as of the date of the e…

Sources

Source: Polymarket market

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