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Event research atlas · Original · EN

Will the Democratic Party control the House after the 2026 Midterm elections?

Total volume: $25,128,343.6324h volume: $4,014,278.33Liquidity: $6,158,450.0324h change · first outcome: No data

Change refers to the first outcome: Yes. Values are percentage points, not relative percentages.

Original resolution rules

Original · EN

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.

Resolution source
No data
Start date
7/11/2025, 7:50:44 PM UTC
Deadline
11/4/2026, 4:59:00 AM UTC
Best bid
94.0%
Best ask
95.0%
Condition ID
0xd5d9fc47718bd553592d126b1fa5e87183d27f3936975b0c04cc0f2dec1f1bb4

Price history

Yes · 94.5%

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Scenario calculator

Outcome
Yes
Displayed price
94.5%
Estimated shares
10.58
Estimated payout if outcome wins
$10.58

Estimates use the displayed price and a $1 payout per winning share. Not a live execution quote or guarantee. Fees, slippage, liquidity and resolution rules affect results. No order is sent.

Open market on Polymarket

Market price is a participant estimate, not A3 AI confidence. Prices are displayed independently without normalization to 100%; rounding and market quotes may produce different totals.

Price changes alone do not explain their cause. No verified news sources or publication times are attached here, so A3 does not attribute current moves to news.