Will the Republican Party hold exactly 54 Senate seats after the 2026 midterm elections? Odds and prices
Markets price "Will the Republican Party hold exactly 54 Senate seats after the 2026 midterm elections" at 3%, with 2 venues quoting within 1 point of each other. The contract settles on resolution; each venue words its settlement rules itself, compared below.
This question on Polymarket and Kalshi.
Odds by venue
| Venue | Yes | No | Fee | 24h volume | Liquidity | |
|---|---|---|---|---|---|---|
| Polymarket | 2¢cheapest to buy | 98¢ | 0.1¢ | $0 | $46K | Trade → |
| Kalshi | 4¢ | 96¢ | 0.2¢ | $6K | – | Trade → |
How the odds have moved
One venue's series for the result the headline prices, not a blend; venues tick at different cadences and interpolating one onto the other would invent points.
What the market is actually pricing
Venues word settlement differently for the same question, and the difference decides who gets paid. This is the comparison no venue publishes about its rivals.
This market will resolve according to the Republican Party’s seat count in the United States Senate as a result of the 2026 United States midterm election scheduled for November 3, 2026.
Full settlement wording
This market will resolve according to the Republican Party’s seat count in the United States Senate as a result of the 2026 United States midterm election scheduled for November 3, 2026.
The 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. Runoffs for qualifying elections will determine attribution of the relevant seat, even if they take place after November 2026. Vacant 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.
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 election. If a current sitting member of the U.S. Senate who is not up for election changes party affiliation or vacates their seat after the date of the election, the seat is attributed to the party under which the member was affiliated at the time of the election.
Senate members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with, the Republican party are included in the count. If the caucus decisions of members of the Senate elected as independents cannot be determined on the date of the election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards the seat count of any party.
The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.
If the Republican party has exactly 54 Senate seats on Feb 1, 2027, then the market resolves to Yes.
Where you can trade this
The Trade links in the tables above open each venue's own market. The reviews cover sign-up, funding and payouts.
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Common questions
What are the odds on "Will the Republican Party hold exactly 54 Senate seats after the 2026 midterm elections"?
Markets currently price it at 3% across 2 venues, a market-implied probability rather than a forecast.
Where can I trade "Will the Republican Party hold exactly 54 Senate seats after the 2026 midterm elections"?
On Polymarket and Kalshi. Availability by state varies for sports contracts; see the legal pages.
Why do the venues show different prices?
Different traders, different fees, and different settlement wording. The gap is the reason this page exists; the cheaper side is marked in the table.