Zach Lahn secured the Republican nomination for Iowa governor in the June 2, 2026 primary after an open-seat contest triggered by Kim Reynolds declining to seek a third term. Lahn, a farmer and businessman emphasizing rural priorities, anti-abortion measures, and a “Make America Healthy Again” platform with RFK Jr. backing, edged U.S. Rep. Randy Feenstra—who held President Trump’s endorsement—by roughly one percentage point in a four-way field that also included Adam Steen, Brad Sherman, and Eddie Andrews. The narrow victory reflected strong grassroots organization and voter preference for Lahn’s Iowa-focused messaging over establishment and MAGA-aligned alternatives. Late certification disputes or recounts remain theoretically possible but face high procedural barriers given the reported results.