Incumbent Republican Mike Carey secured his party's nomination in the May 2026 primary, facing Democratic nominee Don Leonard in the November general election for Ohio's 15th congressional district. The seat carries a Republican-leaning Cook Partisan Voting Index of R+5, consistent with Carey's prior victories and the district's voting patterns in recent cycles. A July 2026 poll showed Carey holding a narrow 45-40 edge, underscoring the race's competitive elements yet highlighting the structural barriers for Democrats seeking to flip the seat. Primary resolutions and limited subsequent polling have reinforced trader consensus around Republican retention, with the general election still months away.
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
$10,102 Vol.
$10,102 Vol.
Republican Party
75%
Democratic Party
17%
$10,102 Vol.
$10,102 Vol.
Republican Party
75%
Democratic Party
17%
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 secured his party's nomination in the May 2026 primary, facing Democratic nominee Don Leonard in the November general election for Ohio's 15th congressional district. The seat carries a Republican-leaning Cook Partisan Voting Index of R+5, consistent with Carey's prior victories and the district's voting patterns in recent cycles. A July 2026 poll showed Carey holding a narrow 45-40 edge, underscoring the race's competitive elements yet highlighting the structural barriers for Democrats seeking to flip the seat. Primary resolutions and limited subsequent polling have reinforced trader consensus around Republican retention, with the general election still months away.
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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