Overview
- Zach Lahn, a 35-year-old businessman and sixth-generation farmer, edged U.S. Rep. Randy Feenstra by roughly 1,600–2,000 votes in Tuesday's five-way Republican primary, winning about 37.8% to Feenstra's roughly 37.0%.
- Feenstra conceded the race and told supporters he called Lahn to offer help to 'keep this state red,' signaling party unity for the general election despite the tight result.
- Lahn ran with backing from the Make America Healthy Again movement and Turning Point Action, centering his campaign on breaking up large agricultural firms, opposing liability shields for pesticide makers, and addressing nitrate-contaminated drinking water and rising cancer concerns.
- President Trump's endorsement of Feenstra arrived only days before the vote and failed to carry the frontrunner, a rare setback for the president's recent primary streak and a sign of fissures in the GOP coalition in Iowa.
- The upset turns the open-seat race created by Gov. Kim Reynolds's decision not to run into a much more competitive contest; Lahn will face unopposed Democratic nominee Rob Sand in November, and analysts have shifted the governor's race toward toss-up status.