Chris McGowan secured the IA-04 House seat in the November 3, 2026, general election for this open Republican-leaning district previously held by Randy Feenstra. The district's consistent Republican presidential margins of 26 to 31 points, combined with McGowan's advantages in fundraising, Trump endorsement, military veteran background, and local economic development role as Siouxland Chamber of Commerce president, drove his projected 15- to 20-point victory over Democrat Dave Dawson, a former state lawmaker and prosecutor. Traders priced the outcome at near-certainty based on early vote counts and the seat's structural fundamentals. Late shifts remain possible only through unprecedented vote-counting anomalies or official certification reversals, though historical patterns in similar districts make such developments highly improbable.