Republicans currently hold a narrow House majority ahead of the 2026 midterms, but trader consensus across seat ranges reflects significant uncertainty driven by the president's party facing typical midterm headwinds, including polling edges for Democrats in battleground districts and a wave of Republican retirements. Redistricting adjustments in states such as Texas and California have added marginal shifts to the map, while Cook Political Report ratings identify roughly 46 competitive seats split between the parties. Special election results and national swing metrics continue to signal potential Democratic gains, keeping probabilities distributed across the 190–210 seat band without a dominant outcome. Upcoming primaries, candidate recruitment, and any late shifts in the economic or approval environment could widen separation among these ranges.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedRepublican House seats after the 2026 midterm elections?
Below 190 26%
200-204 17.9%
190-194 15%
195-199 12%
$288,805 Vol.
$288,805 Vol.
Below 190
26%
190-194
15%
195-199
12%
200-204
18%
205-209
11%
210-214
9%
215-219
5%
220-224
3%
225-229
4%
230+
3%
Below 190 26%
200-204 17.9%
190-194 15%
195-199 12%
$288,805 Vol.
$288,805 Vol.
Below 190
26%
190-194
15%
195-199
12%
200-204
18%
205-209
11%
210-214
9%
215-219
5%
220-224
3%
225-229
4%
230+
3%
The 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 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, the Republican party are included in the 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.
Market Opened: Dec 18, 2025, 8:56 PM ET
Resolver
0x2F5e3684c...The 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 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, the Republican party are included in the 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.
Resolver
0x2F5e3684c...Republicans currently hold a narrow House majority ahead of the 2026 midterms, but trader consensus across seat ranges reflects significant uncertainty driven by the president's party facing typical midterm headwinds, including polling edges for Democrats in battleground districts and a wave of Republican retirements. Redistricting adjustments in states such as Texas and California have added marginal shifts to the map, while Cook Political Report ratings identify roughly 46 competitive seats split between the parties. Special election results and national swing metrics continue to signal potential Democratic gains, keeping probabilities distributed across the 190–210 seat band without a dominant outcome. Upcoming primaries, candidate recruitment, and any late shifts in the economic or approval environment could widen separation among these ranges.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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