Will the Republican Party hold exactly 50 Senate seats after the 2026 midterm elections?
Current price
12.5¢
±0¢ · 24h
Implied probability 12.5%
$137.8K total volume · YES/NO
Low gotcha risk
Gotcha risk — resolution-rule assessment
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The rules provide comprehensive definitions for almost every edge case, including how to count seats with runoffs, vacant seats, post-election vacancies, party switches, and independents caucusing with the party. Resolution may be delayed into early January if runoffs take place or if newly elected independents have not announced their caucus intentions by election day. Official election authorities and congressional records serve as primary anchors alongside credible reporting, leaving minimal discretion to the resolver.
- Wording ambiguity
- Low
- Source discretion
- Low
- Timing risk
- Med
- Exceptional clauses
- Low
Liquidity
Deep book at the daily check: a spread of 1¢ or less and at least $50K of orders within 5¢ of the mid.
Why it moved
No big moves in the last 7 days.
Resolution rules
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.
Rules history
Rules history is not displayed yet.
Market explained
This market measures whether the Republican Party will hold exactly 50 U.S. Senate seats following the 2026 midterm elections, including qualifying independent caucuses and runoff results.
How it resolves
The market resolves to Yes if the Republican Party's seat count in the U.S. Senate is exactly 50 following the 2026 midterm elections. The count includes regular and special elections scheduled for November 2026 as of October 31, 2026, subsequent runoffs, and independents who formally caucus or announce intent to caucus with Republicans. Contested seats reflect the party of election regardless of subsequent party switches or vacancies before Congress organizes; uncontested seats reflect party affiliation on election day. Vacancies with no scheduled election count for the most recent holder's party. The market resolves to No if the Republican seat count is any number other than 50. If independent caucus intent is unclear on election day, resolution may wait until an announcement or January 4th, 11:59 PM ET of the following year, after which unannounced independents count toward no party. Resolution is determined by official information from state electoral authorities, the U.S. Congress, and a consensus of credible reporting.
Key dates
- Election Schedule Cutoff: — Date determining which elections and vacancies are scheduled for November 2026.
- 2026 Midterm Election Day: — Date of the 2026 United States midterm election.
- Independent Caucus Announcement Cutoff: — Deadline at 11:59 PM ET for independent members to announce caucus intentions.
Resolution source
Official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting
AI-generated analysis · google/gemini-3.7-flash ·
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