Daniel Biss secured the Democratic nomination for the open Illinois 9th congressional district in the March 2026 primary, defeating a crowded field that included Kat Abughazaleh and state Sen. Laura Fine. The district, anchored in northern Chicago and North Shore suburbs including Evanston and Skokie, has delivered consistent Democratic margins exceeding 35 points in recent cycles following the retirement of longtime incumbent Jan Schakowsky. Biss, currently Evanston mayor with prior state legislative service, benefits from established local networks and fundraising. Republican nominee John Elleson, a pastor who prevailed in his March primary, faces structural headwinds in a district rated safe Democratic by multiple forecasters. Trader consensus at these levels aligns with the seat’s partisan baseline and limited Republican competitiveness, though late developments such as a major scandal, health event, or significant national shift could still alter the outcome before 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-09 House Election Winner
IL-09 House Election Winner
$31,807 Vol.
$31,807 Vol.
Nov 3, 2026
Daniel Biss (D)
96%
John Elleson (R)
5%
$31,807 Vol.
$31,807 Vol.
Nov 3, 2026
Daniel Biss (D)
$17,553 Vol.
96%
John Elleson (R)
$14,254 Vol.
5%
This market will resolve according to the party of the candidate who wins the IL-09 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).Daniel Biss secured the Democratic nomination for the open Illinois 9th congressional district in the March 2026 primary, defeating a crowded field that included Kat Abughazaleh and state Sen. Laura Fine. The district, anchored in northern Chicago and North Shore suburbs including Evanston and Skokie, has delivered consistent Democratic margins exceeding 35 points in recent cycles following the retirement of longtime incumbent Jan Schakowsky. Biss, currently Evanston mayor with prior state legislative service, benefits from established local networks and fundraising. Republican nominee John Elleson, a pastor who prevailed in his March primary, faces structural headwinds in a district rated safe Democratic by multiple forecasters. Trader consensus at these levels aligns with the seat’s partisan baseline and limited Republican competitiveness, though late developments such as a major scandal, health event, or significant national shift could still alter the outcome before the November 3 general election.
This market will resolve according to the party of the candidate who wins the IL-09 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).
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
Volume
$31,807End Date
Nov 4, 2026Market Opened
Jan 28, 2026, 11:09 AM ETResolver
0x2f5e3684c...This market will resolve according to the party of the candidate who wins the IL-09 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).Daniel Biss secured the Democratic nomination for the open Illinois 9th congressional district in the March 2026 primary, defeating a crowded field that included Kat Abughazaleh and state Sen. Laura Fine. The district, anchored in northern Chicago and North Shore suburbs including Evanston and Skokie, has delivered consistent Democratic margins exceeding 35 points in recent cycles following the retirement of longtime incumbent Jan Schakowsky. Biss, currently Evanston mayor with prior state legislative service, benefits from established local networks and fundraising. Republican nominee John Elleson, a pastor who prevailed in his March primary, faces structural headwinds in a district rated safe Democratic by multiple forecasters. Trader consensus at these levels aligns with the seat’s partisan baseline and limited Republican competitiveness, though late developments such as a major scandal, health event, or significant national shift could still alter the outcome before the November 3 general election.
This market will resolve according to the party of the candidate who wins the IL-09 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).
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/).
Volume
$31,807End Date
Nov 4, 2026Market Opened
Jan 28, 2026, 11:09 AM ETResolver
0x2f5e3684c...Daniel Biss secured the Democratic nomination for the open Illinois 9th congressional district in the March 2026 primary, defeating a crowded field that included Kat Abughazaleh and state Sen. Laura Fine. The district, anchored in northern Chicago and North Shore suburbs including Evanston and Skokie, has delivered consistent Democratic margins exceeding 35 points in recent cycles following the retirement of longtime incumbent Jan Schakowsky. Biss, currently Evanston mayor with prior state legislative service, benefits from established local networks and fundraising. Republican nominee John Elleson, a pastor who prevailed in his March primary, faces structural headwinds in a district rated safe Democratic by multiple forecasters. Trader consensus at these levels aligns with the seat’s partisan baseline and limited Republican competitiveness, though late developments such as a major scandal, health event, or significant national shift could still alter the outcome before 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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