Incumbent Republican Bryan Steil holds a structural advantage in Wisconsin’s 1st Congressional District, a southeast Wisconsin seat that has remained in GOP hands since 1994 and delivered him a 54% victory in 2024. Forecasters rate the race Likely or Solid Republican based on the district’s voting patterns and Steil’s established record. Democrat Mitchell Berman secured his party’s nomination in the August 11 primary and trails Steil by just one point (49-48) in an early August Impact Research survey of likely voters. Trader pricing, which places Republicans at 64.5% and Democrats at 34.5%, reflects the district’s underlying partisan lean and incumbency edge while acknowledging the narrow polling margin that could shift with turnout or national conditions ahead of the November 3 general election.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWI-01 House Election Winner
Republican Party
65%
Democratic Party
35%
Republican Party
65%
Democratic Party
35%
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. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Market Opened: Dec 16, 2025, 1:15 PM ET
Resolver
0x2F5e3684c...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. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Resolver
0x2F5e3684c...Incumbent Republican Bryan Steil holds a structural advantage in Wisconsin’s 1st Congressional District, a southeast Wisconsin seat that has remained in GOP hands since 1994 and delivered him a 54% victory in 2024. Forecasters rate the race Likely or Solid Republican based on the district’s voting patterns and Steil’s established record. Democrat Mitchell Berman secured his party’s nomination in the August 11 primary and trails Steil by just one point (49-48) in an early August Impact Research survey of likely voters. Trader pricing, which places Republicans at 64.5% and Democrats at 34.5%, reflects the district’s underlying partisan lean and incumbency edge while acknowledging the narrow polling margin that could shift with turnout or national conditions ahead of the November 3 general election.
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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