Incumbent Democrat Bill Foster holds a commanding position in Illinois’s 11th congressional district heading into the November 3 general election, backed by the seat’s consistent Democratic lean and his long tenure since redistricting into the district. All major forecasters rate the race Solid or Safe Democratic, reflecting the western Chicago suburbs’ voting patterns and Foster’s primary win without opposition. Republican nominee Jeff Walter, the Elburn mayor who edged out primary rivals in March, faces a steep fundraising gap, with Foster holding millions in cash reserves compared to limited Republican resources. Trader consensus aligns with these structural factors. A national political shift, major scandal, or unexpected turnout surge could still alter the outcome 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 Democrat Bill Foster holds a commanding position in Illinois’s 11th congressional district heading into the November 3 general election, backed by the seat’s consistent Democratic lean and his long tenure since redistricting into the district. All major forecasters rate the race Solid or Safe Democratic, reflecting the western Chicago suburbs’ voting patterns and Foster’s primary win without opposition. Republican nominee Jeff Walter, the Elburn mayor who edged out primary rivals in March, faces a steep fundraising gap, with Foster holding millions in cash reserves compared to limited Republican resources. Trader consensus aligns with these structural factors. A national political shift, major scandal, or unexpected turnout surge could still alter the outcome 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

Beware of external links.
Beware of external links.
Frequently Asked Questions