Trader consensus gives the Republican Party a 60.5% implied probability of victory in Wisconsin's 1st Congressional District House race, driven by incumbent Bryan Steil's leads in the latest polls over Democratic challenger Rebecca Cooke. The district's R+5 Cook Partisan Voter Index favors Republicans, bolstering Steil's incumbency advantage and fundraising superiority—over $3 million raised versus Cooke's under $1 million. Mid-October surveys, including an OnMessage Inc. poll showing Steil up 52%-44%, have solidified this edge amid a national environment tilting toward GOP House gains. No pivotal developments in the past week, with early voting underway and Election Day on November 5th as the key catalyst.
Experimental AI-generated summary referencing Polymarket data · UpdatedWI-01 House Election Winner
WI-01 House Election Winner
Republican Party
55%
Democratic Party
31%
Republican Party
55%
Democratic Party
31%
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...Resolver
0x2F5e3684c...Trader consensus gives the Republican Party a 60.5% implied probability of victory in Wisconsin's 1st Congressional District House race, driven by incumbent Bryan Steil's leads in the latest polls over Democratic challenger Rebecca Cooke. The district's R+5 Cook Partisan Voter Index favors Republicans, bolstering Steil's incumbency advantage and fundraising superiority—over $3 million raised versus Cooke's under $1 million. Mid-October surveys, including an OnMessage Inc. poll showing Steil up 52%-44%, have solidified this edge amid a national environment tilting toward GOP House gains. No pivotal developments in the past week, with early voting underway and Election Day on November 5th as the key catalyst.
Experimental AI-generated summary referencing Polymarket data · Updated

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