Melissa Bean secured the Democratic nomination in the March 17, 2026, primary for the open Illinois 8th Congressional District seat vacated by Rep. Raja Krishnamoorthi’s Senate bid, defeating a crowded field with 32% of the vote, while Jennifer Davis won the less competitive Republican primary. Trader consensus prices a Democratic victory at 90%, reflecting the district’s Solid Democratic rating from Cook Political Report, D+5 partisan voting index, and no Republican hold since post-2012 redistricting. Absent recent polls or developments in the past 30 days, odds emphasize structural advantages like strong Democratic baseline performance in suburban Chicago battlegrounds and Bean’s prior tenure from 2005-2011, with the November 3 general election as the next catalyst amid national midterm dynamics.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedIL-08 House Election Winner
IL-08 House Election Winner
Democratic Party
90%
Republican Party
9%
Democratic Party
90%
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...Melissa Bean secured the Democratic nomination in the March 17, 2026, primary for the open Illinois 8th Congressional District seat vacated by Rep. Raja Krishnamoorthi’s Senate bid, defeating a crowded field with 32% of the vote, while Jennifer Davis won the less competitive Republican primary. Trader consensus prices a Democratic victory at 90%, reflecting the district’s Solid Democratic rating from Cook Political Report, D+5 partisan voting index, and no Republican hold since post-2012 redistricting. Absent recent polls or developments in the past 30 days, odds emphasize structural advantages like strong Democratic baseline performance in suburban Chicago battlegrounds and Bean’s prior tenure from 2005-2011, with the November 3 general election as the next catalyst amid national midterm dynamics.
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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