A recent CNN poll showing Democrats leading the generic congressional ballot by six points has bolstered trader sentiment for significant Republican House losses, compounded by mounting U.S. casualties—13 dead and 365 wounded—in the ongoing Operation Epic Fury against Iran, fueling backlash against the Trump administration. With Republicans defending a razor-thin 218-214 majority amid historical midterm penalties for the president's party, forecasters rate over two dozen GOP-held battleground districts as tossups or leans Democratic, including CA-48 and OH-01. This keeps odds tightly clustered below 195 seats (61% combined), reflecting uncertain paths to Democratic gains of 25+ seats for control; escalation in Iran, primary upsets, or economic shifts could widen the spread.
Experimental AI-generated summary referencing Polymarket data · UpdatedRepublican House seats after the 2026 midterm elections?
Republican House seats after the 2026 midterm elections?
$198,357 Vol.
$198,357 Vol.
Below 190
35%
190-194
26%
195-199
13%
200-204
8%
205-209
6%
210-214
3%
215-219
5%
220-224
4%
225-229
2%
230+
1%
$198,357 Vol.
$198,357 Vol.
Below 190
35%
190-194
26%
195-199
13%
200-204
8%
205-209
6%
210-214
3%
215-219
5%
220-224
4%
225-229
2%
230+
1%
This market will resolve according to the number of seats held by the Republican Party in the US House of Representatives as a result of the 2026 midterm elections.
This market will resolve based on the results of all US House of Representatives elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all US House of Representatives elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
Market Opened: Dec 18, 2025, 8:56 PM ET
Resolver
0x2F5e3684c...This market will resolve according to the number of seats held by the Republican Party in the US House of Representatives as a result of the 2026 midterm elections.
This market will resolve based on the results of all US House of Representatives elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all US House of Representatives elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
Resolver
0x2F5e3684c...A recent CNN poll showing Democrats leading the generic congressional ballot by six points has bolstered trader sentiment for significant Republican House losses, compounded by mounting U.S. casualties—13 dead and 365 wounded—in the ongoing Operation Epic Fury against Iran, fueling backlash against the Trump administration. With Republicans defending a razor-thin 218-214 majority amid historical midterm penalties for the president's party, forecasters rate over two dozen GOP-held battleground districts as tossups or leans Democratic, including CA-48 and OH-01. This keeps odds tightly clustered below 195 seats (61% combined), reflecting uncertain paths to Democratic gains of 25+ seats for control; escalation in Iran, primary upsets, or economic shifts could widen the spread.
Experimental AI-generated summary referencing Polymarket data · Updated
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