- Will the Democratic Party win the IL-04 House seat?98¢
- Will the Republican Party win the IL-04 House seat?2¢
Patty García’s commanding position in the Illinois 4th Congressional District race stems from the district’s strong Democratic lean, reflected in its D+17 partisan voter index and consistent Solid Democratic ratings from forecasters. As the former chief of staff to retiring Representative Jesús “Chuy” García, she secured the Democratic nomination unopposed after the primary filing process and has amassed over 175 endorsements along with substantial fundraising exceeding $350,000. Republican nominee Lupe Castillo and the independent and third-party candidates face structural disadvantages in this heavily Democratic area spanning Chicago’s Southwest Side and western suburbs. The November 3 general election remains two weeks away, leaving room for shifts driven by turnout patterns or late developments, though the current consensus pricing aligns with historical results and the limited competitive infrastructure on the other side.
Rules
This market will resolve according to the party of the candidate who wins the IL-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. 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/).