Republican Chris McGowan secured Iowa’s 4th Congressional District on November 3 with roughly 59 percent of the vote to Democrat Dave Dawson’s 41 percent, producing an 18-point margin consistent with the district’s long-standing Republican lean and Trump’s 2024 performance there. The open seat, vacated by Randy Feenstra’s gubernatorial bid, featured McGowan’s local economic development experience, military service, and endorsement support against a challenger whose platform aligned with less competitive Democratic messaging in this northwest Iowa territory. Trader consensus on a 15-20 percent Republican margin reflects these verified tallies and the absence of competitive polling or turnout surprises. Late precinct reporting or certification adjustments could still shift the precise range, though current counts indicate limited scope for meaningful change.