Businessman Zach Lahn defeated Rep. Randy Feenstra in Iowa's Republican gubernatorial primary on Tuesday, marking the first major primary loss of the 2026 midterm cycle for a candidate endorsed by President Donald Trump.
With nearly all votes counted, Lahn led Feenstra by less than one percentage point, narrowly avoiding the threshold that would have sent the race to a state convention. Feenstra conceded late Tuesday night.
