Incumbent Democratic Representative Sean Casten secured his party’s nomination in the March 2026 primary and enters the November general election against Republican nominee Niki Conforti in a southwest Chicago suburban district that has supported Democratic candidates by double-digit margins in recent cycles. Casten’s consistent fundraising edge, name recognition, and the district’s partisan composition underpin trader consensus reflected in the current pricing. The seat has been rated Solid or Lean Democratic by multiple nonpartisan analysts. Late developments that could narrow the gap include a significant national Republican wave, major personal or ethical issues affecting the incumbent, or unexpected shifts in suburban turnout patterns, though no such factors have materialized in the current cycle.
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
$39,267 Vol.
$39,267 Vol.
Democratic Party
94%
Republican Party
3%
$39,267 Vol.
$39,267 Vol.
Democratic Party
94%
Republican Party
3%
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 Representative Sean Casten secured his party’s nomination in the March 2026 primary and enters the November general election against Republican nominee Niki Conforti in a southwest Chicago suburban district that has supported Democratic candidates by double-digit margins in recent cycles. Casten’s consistent fundraising edge, name recognition, and the district’s partisan composition underpin trader consensus reflected in the current pricing. The seat has been rated Solid or Lean Democratic by multiple nonpartisan analysts. Late developments that could narrow the gap include a significant national Republican wave, major personal or ethical issues affecting the incumbent, or unexpected shifts in suburban turnout patterns, though no such factors have materialized in the current cycle.
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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