Incumbent Democratic Rep. Mike Quigley secured a decisive victory in the March 17, 2026, Illinois Democratic primary for IL-05, defeating challengers including Matthew Conroy and Anthony Tamez, while small business owner Tommy Hanson won the Republican nomination. Trader consensus at 93.5% for Democrats reflects the district's solid blue lean—rated Solid D by Cook Political Report—with Quigley's incumbency advantage, strong fundraising, and history of winning over 70% in past general elections in this affluent Chicago North Side seat. No recent polls show competitiveness, underscoring limited GOP path absent a major scandal hitting Quigley, national Republican midterm wave, or unexpected voter turnout shifts 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. · UpdatedIL-05 House Election Winner
IL-05 House Election Winner
Democratic Party
94%
Republican Party
6%
Democratic Party
94%
Republican Party
6%
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: Jan 28, 2026, 11:09 AM 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 Democratic Rep. Mike Quigley secured a decisive victory in the March 17, 2026, Illinois Democratic primary for IL-05, defeating challengers including Matthew Conroy and Anthony Tamez, while small business owner Tommy Hanson won the Republican nomination. Trader consensus at 93.5% for Democrats reflects the district's solid blue lean—rated Solid D by Cook Political Report—with Quigley's incumbency advantage, strong fundraising, and history of winning over 70% in past general elections in this affluent Chicago North Side seat. No recent polls show competitiveness, underscoring limited GOP path absent a major scandal hitting Quigley, national Republican midterm wave, or unexpected voter turnout shifts 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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