Zach Lahn defeats Randy Feenstra in Iowa GOP gubernatorial primary

Zach Lahn defeated Rep. Randy Feenstra (R-IA) in the Iowa GOP gubernatorial primary, marking the first major loss for a Trump-endorsed candidate in the 2026 primaries. Lahn secured approximately 37.79% of the vote, while Feenstra received about 37.01%, with a margin of approximately 1,600 votes. Feenstra's campaign focused on support for Trump's policies, while Lahn emphasized health and lifestyle issues, including cancer rates and agricultural safety. Lahn's victory is seen as a significant win for the Make America Healthy Again (MAHA) movement. He will face Democratic candidate Rob Sand in the November general election. Trump won Iowa in the 2024 presidential election by over 13 percentage points.