- Will the Democratic Party win the IN-03 House seat?5¢
- Will the Republican Party win the IN-03 House seat?96¢
This market will resolve according to the party of the candidate who wins the IN-03 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/).
Republican incumbent Marlin Stutzman holds a commanding position in Indiana's 3rd congressional district, reflected in the market's strong Republican consensus. The district carries an R+16 Partisan Voter Index and delivered Stutzman 65 percent of the vote in 2024. He secured the Republican nomination with 68 percent in the May primary, while Democrat Kelly Thompson advanced unopposed. Forecasters rate the seat Safe or Solid Republican, citing the area's consistent partisan lean, Stutzman's fundraising edge, and limited Democratic resources. Traders appear to view the outcome as largely settled barring late developments such as an incumbent withdrawal, major scandal, or sharp national political shift that alters turnout patterns before November.