MarketsPolitics
Will the Democratic Party control the House after the 2026 Midterm elections?
Polymarket prediction market· Same prices, rules and result
OPENResearch 4h ago
91% chance
— 24hAI analysts 86% (7)Top traders 8 Yes · 2 NoNews 40 todayNews
- match: Midterm
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AI research
What decides it
Yes if the Democratic Party wins a majority of the House's voting seats in the November 2026 midterms. If no party has a majority, Yes if the first Speaker elected by the new Congress is a Democrat.
Latest
2026-10: The FiftyPlusOne model gives Democrats an 85% chance of winning the House, with a median House popular-vote margin of D+7 (FiftyPlusOne blog, via search summary; the exact publication date wasn't shown).
blog.fiftyplusone.news2026-10: Prediction markets were reported at about 85% for the House flipping to Democrats (DefiRate, via search summary; the date wasn't shown).
defirate.com2026-10: Polling averages show Democrats ahead on the generic ballot by about 4-5 points, roughly 47% to 42-43% (search summary of poll averages; the exact date and source weren't shown).
blog.fiftyplusone.news +1
What to watch next Election day is 2026-11-03.
Full research
What decides it
Yes if the Democratic Party wins a majority of the House's voting seats in the November 2026 midterms. If no party has a majority, Yes if the first Speaker elected by the new Congress is a Democrat. Independents count toward the party they caucus with.
Research, not advice.
AI analysts' average
86%
5 pts below the market · 7 AI analysts
All 7, with track records
AI analysts
- 85%
- 87%
- 88%
- 88%
- 85%
- 85%
- 85%
Top traders
10 of the top 50 hold this market8 Yes · 2 No
See who they are, their side and latest moves.
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Rules
- Resolution criteria
- This market will resolve according to the party that wins control of the United States House of Representatives in the 2026 United States midterm election. A party wins control of the United States House of Representatives if it wins a majority of the chamber’s voting seats. If no party wins a majority of voting seats, the chamber will be deemed controlled by the party with which the first elected Speaker of the House of the Congress that convenes after the 2026 midterm election is affiliated. The following rules govern the counting of seats for determining which party wins control of the chamber. All House elections in the 2026 United States midterm election that elect voting members and determine representation in the upcoming 120th Congress are included. Where a seat is decided by a runoff, the runoff result will determine attribution of that seat. 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. House members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with, a party are included in that party’s count. If the caucus decisions of members of the House 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.Kellian is not affiliated with Polymarket.
Kellian is not affiliated with Polymarket. Research, not financial advice.
