Incumbent Democrat Bill Foster's unopposed win in the March 17, 2026, Illinois Democratic primary solidified his commanding position in the D+6 leaning IL-11 district, where he has secured victories by double-digit margins in recent cycles, including 55.6% to 44.4% in 2024. Trader consensus at 91% for Democrats reflects Foster's massive fundraising edge—$2.3 million cash on hand versus Republican nominee Jeff Walter's $9,000 as of late March—along with the district's consistent Democratic presidential performance and lack of competitive polling. Walter, Elburn's mayor who edged a fragmented GOP primary field, faces steep structural barriers. Upsets remain possible via Foster scandal, health issues, or a strong Republican midterm wave shifting battleground turnout.
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
IL-11 House Election Winner
Democratic Party
91%
Republican Party
9%
Democratic Party
91%
Republican Party
9%
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's unopposed win in the March 17, 2026, Illinois Democratic primary solidified his commanding position in the D+6 leaning IL-11 district, where he has secured victories by double-digit margins in recent cycles, including 55.6% to 44.4% in 2024. Trader consensus at 91% for Democrats reflects Foster's massive fundraising edge—$2.3 million cash on hand versus Republican nominee Jeff Walter's $9,000 as of late March—along with the district's consistent Democratic presidential performance and lack of competitive polling. Walter, Elburn's mayor who edged a fragmented GOP primary field, faces steep structural barriers. Upsets remain possible via Foster scandal, health issues, or a strong Republican midterm wave shifting battleground turnout.
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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