- Will the Democratic Party win the OH-15 House seat?69¢
- Will the Republican Party win the OH-15 House seat?29¢
Incumbent Mike Carey holds a narrow edge in the OH-15 race due to the district’s R+5 partisan lean and established name recognition in the southwestern Columbus suburbs. Recent Democratic polling shows Don Leonard within striking distance or ahead, reflecting competitive dynamics in a swing-leaning area where turnout among suburban voters and independents could decide the outcome. Carey’s substantial fundraising lead provides an advantage in advertising, yet Leonard’s primary win and outside support have narrowed the gap. A Libertarian candidate on the ballot adds uncertainty to vote splitting. Forecaster ratings cluster in the Lean or Likely Republican range, consistent with trader pricing that treats the contest as closely balanced heading into the November general election.
Rules
This market will resolve according to the party of the candidate who wins the OH-15 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/).