Incumbent Republican Stephanie Bice faces Democrat Jena Nelson in Oklahoma’s 5th Congressional District, an Oklahoma City-area seat with a Cook Partisan Voter Index of R+9. A September internal poll showed Bice leading 48-43, narrower than her 2024 margin and reflecting national Democratic interest, including reported DCCC funding commitments. The district’s history of flipping in 2018 and recent unfavorable Trump ratings among some voters have contributed to trader focus on Republican margins clustered between 5 and 15 points. Independent candidates and the November 3 general election timeline add limited uncertainty, while solid Republican ratings from forecasting outlets underscore the underlying partisan lean. Developments such as additional polling, campaign spending patterns, or late shifts in turnout could widen or compress the expected margin.