Democratic candidate Rebecca Cooke's consistent narrow polling leads over Republican incumbent Derrick Van Orden—49% to 48% in February and March surveys—combined with her fundraising dominance for the second straight period reported April 16, have propelled trader consensus to a 73% implied probability for a Democratic House win in Wisconsin's 3rd Congressional District. Cooke also holds a commanding 43-point lead in the Democratic primary per a March poll, signaling field consolidation ahead of the August 11 primaries and June 1 filing deadline. This rural Driftless Area battleground, rated a toss-up by Cook Political Report, reflects midterm dynamics favoring challengers amid Van Orden's vulnerability despite the district's Trump +7 lean in 2024.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWI-03 House Election Winner
WI-03 House Election Winner
Democratic Party
53%
Republican Party
43%
Democratic Party
53%
Republican Party
43%
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...Democratic candidate Rebecca Cooke's consistent narrow polling leads over Republican incumbent Derrick Van Orden—49% to 48% in February and March surveys—combined with her fundraising dominance for the second straight period reported April 16, have propelled trader consensus to a 73% implied probability for a Democratic House win in Wisconsin's 3rd Congressional District. Cooke also holds a commanding 43-point lead in the Democratic primary per a March poll, signaling field consolidation ahead of the August 11 primaries and June 1 filing deadline. This rural Driftless Area battleground, rated a toss-up by Cook Political Report, reflects midterm dynamics favoring challengers amid Van Orden's vulnerability despite the district's Trump +7 lean in 2024.
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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