Recent polling averages show Democrat Janelle Stelson holding a narrow lead over incumbent Republican Scott Perry in Pennsylvania’s 10th District, with Stelson at roughly 48% and Perry at 46-47% among likely voters. Traders have priced Stelson at an 88.5% implied probability because the rematch favors the challenger in a competitive swing district where fundraising, cash-on-hand, and national midterm dynamics have shifted momentum. Stelson has maintained a substantial financial edge and secured key endorsements, including from Governor Josh Shapiro, while Perry faces headwinds from prior election-related controversies and negative campaign fallout. Recent surveys from outlets such as the New York Times/Siena and Susquehanna confirm the tight but consistent Democratic tilt heading into the November 3 general election.