Democratic nominee Janelle Stelson holds a clear edge in Pennsylvania’s 10th Congressional District race, with prediction markets reflecting trader consensus around a 77% implied probability of a Democratic victory. The seat, anchored in the Harrisburg and York areas, became highly competitive after incumbent Republican Scott Perry prevailed by just over 5,000 votes in the 2024 rematch. Stelson secured the Democratic nomination decisively in the May 19, 2026 primary and has since built a substantial fundraising lead, including more than double Perry’s quarterly receipts and a sizable cash-on-hand advantage. Major forecasters rate the contest a toss-up or lean Democratic, citing the narrow prior margin, Stelson’s name recognition from the prior cycle, and endorsements such as that from Governor Josh Shapiro. Perry advanced unopposed in the Republican primary but faces headwinds in a district where turnout patterns and campaign resources could prove decisive on November 3.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedPA-10 House Election Winner
Democratic Party
77%
Republican Party
24%
Democratic Party
77%
Republican Party
24%
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: Dec 16, 2025, 12:49 PM 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...Democratic nominee Janelle Stelson holds a clear edge in Pennsylvania’s 10th Congressional District race, with prediction markets reflecting trader consensus around a 77% implied probability of a Democratic victory. The seat, anchored in the Harrisburg and York areas, became highly competitive after incumbent Republican Scott Perry prevailed by just over 5,000 votes in the 2024 rematch. Stelson secured the Democratic nomination decisively in the May 19, 2026 primary and has since built a substantial fundraising lead, including more than double Perry’s quarterly receipts and a sizable cash-on-hand advantage. Major forecasters rate the contest a toss-up or lean Democratic, citing the narrow prior margin, Stelson’s name recognition from the prior cycle, and endorsements such as that from Governor Josh Shapiro. Perry advanced unopposed in the Republican primary but faces headwinds in a district where turnout patterns and campaign resources could prove decisive on November 3.
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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