Trump carried Iowa by 13 points in 2024. His endorsement of Randy Feenstra landed on a Friday. By Tuesday evening, it was over – and Feenstra had lost by less than one percentage point.
Zach Lahn’s defeat of Rep. Randy Feenstra in the Iowa Republican gubernatorial primary on June 2 marked President Trump’s first major primary loss of the 2026 midterm election cycle. According to the Associated Press, Lahn won with 38% to Feenstra’s 37.2%. The size of the margin isn’t really the point. A presidential endorsement, dropped into an open primary four days before voters went to the polls, failed to move the needle in a state that had reliably been Trump country.
Trump first endorsed Feenstra on May 29 via Truth Social, calling him a “Highly Respected American First Congressman” and giving him his “Complete and Total Endorsement.” In a Monday Truth Social post, the president reaffirmed his support, declaring that Feenstra was “MAGA all the way.” The timing made the defeat sharper. Trump had stayed out of the race for months while the field took shape around him. When he finally weighed in, it wasn’t enough. His defeat marks the first major loss among those endorsed by Trump this election cycle.
A White House ally told Politico’s Playbook that the president was angry he was pressured to support Feenstra, with the source saying: “He’s really angry about this Iowa endorsement – like really, really angry.” Trump later told reporters that Lahn was “much more Trump” than the congressman he had endorsed – a characterization that drew attention precisely because Trump had made the endorsement in the first place.
Who Is Zach Lahn?
Lahn, a farmer and former conservative political director, was relatively unknown in Iowa until he launched his campaign in November. He had not previously held political office, previously worked for the Koch-affiliated advocacy group Americans for Prosperity, and in 2018 had launched a private pre-K through 12th-grade school in Kansas. Though the four other candidates running for the GOP nomination had less initial name recognition than Feenstra and lacked Trump’s backing, Lahn gained traction as he overtook Feenstra in fundraising for the recent reporting period. According to reports filed with the Iowa Ethics and Campaign Disclosure Board, Lahn raised $980,152 while Feenstra raised $739,059 from January 1 through May 14, though Lahn’s total fundraising of $3.14 million included a $2 million personal loan.
During his campaign, Lahn championed policies that appealed to Iowa’s conservative grassroots supporters, like a total ban on abortion and keeping liberal ideology out of school classrooms. He capitalized on activists’ skepticism toward Feenstra, criticizing him for not showing up to debate his primary opponents and spending limited time on the campaign trail. Lahn also carved out a niche in the MAHA movement, vocally rebuking the consolidation of farmland in the hands of corporate owners and acknowledging health concerns involving farms and poor water quality. His ability to thread multiple strands of Republican conservatism – family farm nostalgia, anti-establishment energy, and social conservatism – helped him consolidate support that Feenstra couldn’t match despite the presidential seal of approval.
The MAHA Factor
The most striking dimension of Lahn’s victory wasn’t who lost – it was who helped him win. The upset marked a potential breakthrough moment for the Make America Healthy Again movement, which has clashed with the Trump administration over its embrace of pesticides and backed Lahn’s message in favor of regenerative farming and against large agricultural corporations. Tony Lyons, the president of the Kennedy-aligned MAHA PAC, called the result “a signal that pro-pesticide does not mean pro-farmer,” and said Lahn’s campaign making the transition away from toxic chemicals its cornerstone “won this election decisively with strong farmer support.”
Lahn, who is affiliated with the “Make America Health Again” or “MAHA” movement led nationally by Health and Human Services Secretary Robert F. Kennedy, was endorsed by Turning Point Action, the political advocacy arm of Turning Point USA, the same day Trump endorsed Feenstra. The collision of those two endorsements on the same day created a split-screen moment inside the Republican coalition – Trump on one side, Trump-adjacent MAHA forces on the other.
Lahn aligned himself with Kennedy’s MAHA movement, and an outside group supporting him painted Feenstra as soft on immigration. The immigration attacks gave undecided Republican voters a second reason to look past Feenstra, beyond agricultural policy. Lahn also appeared to benefit from an endorsement from former Rep. Steve King, who lost to Feenstra in a bitter 2020 House primary. Lahn was leading Feenstra in 16 of the 19 counties King won in that contest when the race was called. That geographic overlap suggests that King’s voters – deeply ideological, skeptical of the Republican establishment – transferred their allegiance directly to Lahn.
Why the Endorsement Fell Short
Lahn capitalized on activists’ skepticism toward Feenstra, criticizing him for not showing up to debate his primary opponents and spending limited time on the campaign trail. Some members of his own party, including his primary opponents, raised the same criticisms during the cycle. For a candidate whose closing argument was “I have the president’s endorsement,” visibility on the ground matters as much as social media validation from Washington.
A survey conducted May 27-28 by JMC Analytics and Polling among 550 likely Republican primary voters found Zach Lahn leading U.S. Rep. Randy Feenstra 24% to 22% in the race for governor. Lahn’s support was strongest among evangelical conservatives, where he led Feenstra by a wide margin. He also held a narrow advantage among self-identified Trump/MAHA Republicans, while establishment Republicans favored Feenstra. Turning Point Action also endorsed Lahn just days before the primary.
Timothy Hagle, a political science professor at the University of Iowa, noted: “It’s probably going to be relatively close. Iowa has gone Republican for the last couple cycles. I would still argue it’s a purple state, mainly because there’s no-party voters that at some point will likely shift back. The question is whether this is the election to do it, and I’m not sure at this point that it is. But again, we’ve got a long way to go.” Karen Kedrowski, a political science professor at Iowa State University, noted that Feenstra’s strategy during the entire primary race was to act like the incumbent – a posture, comfortable and presumptive, that proved fatal in a race where no incumbent was actually running.
The open seat was itself part of the context. The race drew more candidates than usual as it was the first election cycle in more than a decade without a Republican incumbent on the ballot, after Gov. Kim Reynolds announced in 2025 she would not seek reelection. It was the first open-seat gubernatorial election in Iowa since 2006 – which was the last time a Democrat won the governorship there. That history wasn’t lost on anyone watching the November forecast.
What the Loss Did to the November Map
According to Sabato’s Crystal Ball, the University of Virginia’s nonpartisan election forecasting project, the forecasters moved the Iowa governor’s race to a Toss-up after the primary, regardless of who the Republican nominee turned out to be. They also bumped both Iowa’s Senate race and the contest for the state’s 2nd congressional district from “Likely Republican” to “Leans Republican.” One primary result cascaded across three competitive contests.
Democratic state Auditor Rob Sand, the lone Democrat currently holding statewide office, is the party’s nominee for governor. Unopposed in the primary, Sand has been able to hone his moderate message, remind voters of his rural upbringing, and amass an $18 million campaign fund. Sand’s campaign announced it raised more than $9.6 million in 2026, with nearly $18.3 million cash on hand heading into the general election campaign. According to Sand’s campaign, that fundraising total surpasses the amount raised during all of 2025 and more than triples the previous record for this stage of a gubernatorial campaign in Iowa.
As of early June, Republican voter registration numbers surpassed Democrats in Iowa by almost 200,000, but appealing to the nearly 600,000 no-party voters could be crucial in November. Lahn, as an outsider candidate without a long record of elected office, may find those independent voters harder to consolidate than a more conventional Republican might have. Lahn being more of an outsider than Feenstra could conceivably be helpful if he wants to distance himself from the state’s current leadership – but the same novelty that helped him win the primary could complicate his general election argument.
Feenstra’s loss represented a rare 2026 result where a Trump-endorsed Republican did not win their primary, though there have been other cases this cycle at lower levels of government – in North Carolina, for instance, state Senate President Phil Berger received the president’s support but narrowly lost his own primary.
What This Means Going Forward
The narrow upset revealed cracks in Trump’s coalition in a red state that helped the president mount his comeback, encouraging Democrats who are hopeful they can flip control of the governor’s office this year. Trump won Iowa by a 13-point margin over Kamala Harris in 2024. A single primary defeat doesn’t erase that, but it complicates the math that Republican strategists had been counting on.
The MAHA movement’s role in Lahn’s win also signals something concrete for other states: that agricultural and food-safety politics can move Republican primary voters, even against a presidential endorsement. Kelly Ryerson, a Florida-based activist whose social media account Glyphosate Girl focuses on nontoxic food systems, said she wants midterm candidates in other states to take note, arguing that “decreasing pesticides and improving food quality are common ground issues that drive votes.” Whether Lahn’s victory is a local anomaly or a preview of MAHA’s potential to complicate Trump’s endorsement power elsewhere remains an open question heading into November.
Other Iowa Trump-backed candidates won their races on primary night. Ashley Hinson won the U.S. Senate primary, and JMC Analytics and Polling, which conducted the pre-primary poll May 27 and 28, correctly predicted her blowout win. State Rep. Joe Mitchell won his primary in Iowa’s 2nd Congressional District, and Mariannette Miller-Meeks prevailed in Iowa’s 1st Congressional District. The governor’s race was the exception – but what Iowa made clear on June 2 is that a presidential endorsement, delivered four days before an election, is neither a guarantee nor a substitute for sustained retail politics on the ground. With five months to go until November 3, that lesson will matter in every competitive state on the map.
AI Disclaimer: This article was created with the assistance of AI tools and reviewed by a human editor.
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