Incumbent Republican Mary Miller's strong March 17 primary win with 73.5% solidifies her frontrunner status in Illinois' 15th Congressional District, a Cook PVI R+20 safe Republican seat, driving trader consensus to 94.5% odds for a GOP victory over Democrat Jennifer Todd in the November 3 general election. Miller's prior landslides—99.5% unopposed in 2024, 71% in 2022—paired with fundraising dominance ($976,000 raised, $782,000 cash on hand vs. Todd's $42,000 and negative cash) highlight structural advantages in this rural southern Illinois district. Absent recent polling or developments, odds reflect historical base rates for incumbents in deep-red seats; late scandals, health events, or a Democratic midterm wave could challenge this outlook.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedIL-15 House Election Winner
IL-15 House Election Winner
$10,660 Vol.
$10,660 Vol.
Republican Party
95%
Democratic Party
5%
$10,660 Vol.
$10,660 Vol.
Republican Party
95%
Democratic Party
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 Republican Mary Miller's strong March 17 primary win with 73.5% solidifies her frontrunner status in Illinois' 15th Congressional District, a Cook PVI R+20 safe Republican seat, driving trader consensus to 94.5% odds for a GOP victory over Democrat Jennifer Todd in the November 3 general election. Miller's prior landslides—99.5% unopposed in 2024, 71% in 2022—paired with fundraising dominance ($976,000 raised, $782,000 cash on hand vs. Todd's $42,000 and negative cash) highlight structural advantages in this rural southern Illinois district. Absent recent polling or developments, odds reflect historical base rates for incumbents in deep-red seats; late scandals, health events, or a Democratic midterm wave could challenge this outlook.
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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