Incumbent Democrat Sean Casten holds a commanding lead in the IL-06 House race following his dominant 76% win in the March 17 Democratic primary, solidifying trader consensus at 94% implied probability for the Democratic Party ahead of the November 3 general election against Republican Niki Conforti. The district's D+3 partisan voting index, combined with Safe/Solid Democratic ratings from Cook Political Report, Sabato's Crystal Ball, and others, underscores Casten's incumbency advantage since flipping the suburban Chicago seat in 2018; his fundraising dwarfs Conforti's with $1.18 million cash on hand versus $32,000 as of late March. No recent polling challenges this positioning, though a major scandal, health event, or strong Republican midterm wave could theoretically narrow the gap.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedIL-06 House Election Winner
IL-06 House Election Winner
$23,584 Vol.
$23,584 Vol.
Democratic Party
94%
Republican Party
6%
$23,584 Vol.
$23,584 Vol.
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 Democrat Sean Casten holds a commanding lead in the IL-06 House race following his dominant 76% win in the March 17 Democratic primary, solidifying trader consensus at 94% implied probability for the Democratic Party ahead of the November 3 general election against Republican Niki Conforti. The district's D+3 partisan voting index, combined with Safe/Solid Democratic ratings from Cook Political Report, Sabato's Crystal Ball, and others, underscores Casten's incumbency advantage since flipping the suburban Chicago seat in 2018; his fundraising dwarfs Conforti's with $1.18 million cash on hand versus $32,000 as of late March. No recent polling challenges this positioning, though a major scandal, health event, or strong Republican midterm wave could theoretically narrow the gap.
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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