Incumbent Bill Foster holds a commanding lead in the Illinois 11th congressional district race due to the seat's consistent Democratic lean, reflected in a Partisan Voter Index of D+6 and multiple nonpartisan ratings classifying it as solidly or safely Democratic ahead of the November 3 general election. Foster, who won reelection in 2024 with 55.6 percent of the vote, ran unopposed in the March 2026 Democratic primary and maintains a substantial fundraising edge exceeding $2 million compared to Republican nominee Jeff Walter's roughly $300,000. Walter, the mayor of Elburn, prevailed in a competitive GOP primary but faces structural headwinds in a district centered on Chicago's western suburbs. All major forecasting outlets have held steady ratings through September 2026, underscoring limited recent movement. Late national shifts, turnout anomalies, or unforeseen candidate developments could theoretically alter the trajectory before election day.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedIL-11 House Election Winner
$40,038 Vol.
$40,038 Vol.
Bill Foster (D)
95%
Jeff Walter (R)
5%
$40,038 Vol.
$40,038 Vol.
Bill Foster (D)
95%
Jeff Walter (R)
5%
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 Bill Foster holds a commanding lead in the Illinois 11th congressional district race due to the seat's consistent Democratic lean, reflected in a Partisan Voter Index of D+6 and multiple nonpartisan ratings classifying it as solidly or safely Democratic ahead of the November 3 general election. Foster, who won reelection in 2024 with 55.6 percent of the vote, ran unopposed in the March 2026 Democratic primary and maintains a substantial fundraising edge exceeding $2 million compared to Republican nominee Jeff Walter's roughly $300,000. Walter, the mayor of Elburn, prevailed in a competitive GOP primary but faces structural headwinds in a district centered on Chicago's western suburbs. All major forecasting outlets have held steady ratings through September 2026, underscoring limited recent movement. Late national shifts, turnout anomalies, or unforeseen candidate developments could theoretically alter the trajectory before election day.
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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