Randy Feenstra

The result marked a major setback for Feenstra, who represents Iowa’s 4th Congressional District and entered Election Day as the best-known Republican in the race. Feenstra had a congressional profile, a fundraising advantage, support from prominent Iowa Republicans, including former Gov. Terry Branstad, and a late endorsement from President Donald Trump.

Lahn had just around a 1,600-vote lead ahead of Feenstra shortly after midnight Eastern Time with 99% of the votes counted, according to The Associated Press’ elections tracker.

“I just called Zach Lahn, and said, ‘Hey, you got to carry this torch. We got to keep this state red. You got to make sure you beat Rob Sand.’ And I’m all in to help him out,” Feenstra said to supporters at his election night gathering, according to a video recording shared by Iowas News Now reporter Skylar Tallal.

Trump endorsed Feenstra just days before the primary, calling him “MAGA all the way” and giving him his “Complete and Total Endorsement.” Feenstra campaigned as a close ally of the president, highlighting his support for Trump’s agenda on border security, tax cuts, energy production and agriculture.