Incumbent Republican Mike Carey has solidified his position as the GOP nominee for Ohio's 15th Congressional District following the Supreme Court's April 10 refusal to reinstate primary challenger Samuel Ronan, accused of Democratic ties, leaving Carey unopposed ahead of the May 5 primary. Rated Solid Republican by Cook Political Report and Safe Republican by Sabato's Crystal Ball, the district favored Donald Trump 55%-44% in 2024, with Carey securing victories of 56.5% in 2024, 57% in 2022, and 58% in the 2021 special election. Democrats face a contested primary between Adam Miller—Carey's 2024 foe—and Don Leonard, but Miller trails in fundraising with $303,000 cash on hand versus Carey's $1.5 million as of mid-April. This structural Republican edge and lack of competitive polling underpin trader consensus implying a 69% GOP win probability.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedOH-15 House Election Winner
OH-15 House Election Winner
Republican Party
70%
Democratic Party
31%
Republican Party
70%
Democratic Party
31%
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, 11:23 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 Mike Carey has solidified his position as the GOP nominee for Ohio's 15th Congressional District following the Supreme Court's April 10 refusal to reinstate primary challenger Samuel Ronan, accused of Democratic ties, leaving Carey unopposed ahead of the May 5 primary. Rated Solid Republican by Cook Political Report and Safe Republican by Sabato's Crystal Ball, the district favored Donald Trump 55%-44% in 2024, with Carey securing victories of 56.5% in 2024, 57% in 2022, and 58% in the 2021 special election. Democrats face a contested primary between Adam Miller—Carey's 2024 foe—and Don Leonard, but Miller trails in fundraising with $303,000 cash on hand versus Carey's $1.5 million as of mid-April. This structural Republican edge and lack of competitive polling underpin trader consensus implying a 69% GOP win probability.
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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