Randy Feenstra

Randy Feenstra is heading into Iowa’s Republican gubernatorial primary as the clear frontrunner after a late endorsement from President Donald Trump.

Prediction markets suggest Trump’s backing, the kind of intervention that has repeatedly reshaped Republican primaries this cycle, has significantly strengthened his position just hours before voting began today.

In a Monday Truth Social post, the president reaffirmed his support, declaring that Feenstra was “MAGA all the way”.

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At the time of writing, Polymarket odds had rallied from around 73 percent on June 1 to 88 percent on June 2, while Kalshi markets showed Feenstra at roughly 84 percent, up from about 81 percent a day earlier—pointing to a clear shift in trader sentiment following Trump's endorsement message.

Key Points

Trump’s endorsement appears to have given Feenstra a late boost heading into voting day

Prediction markets moved sharply in his favour within 24 hours of the latest post

Feenstra is seen by traders as the overwhelming favourite to win the nomination

That confidence contrasts with recent polling that suggested a competitive race

The contest remains a five-way primary with no incumbent, leaving room for late volatility

Snapshot Of The Race

Trump reiterated his backing of Feenstra on June 1, just hours before the June 2 Iowa Republican primary, as markets moved decisively in the congressman’s direction.

The endorsement landed in the final stretch of an unsettled race, sharpening Feenstra’s position among late-deciding voters.

Republican voters in Iowa will choose the nominee from a crowded field, with the winner advancing to face Democratic candidate Rob Sand.

Why It Matters

The race opened up after Governor Kim Reynolds declined to seek reelection, creating a rare competitive Republican primary in Iowa. Feenstra’s standing had looked less secure in the final days, with at least one late-May poll showing a rival slightly ahead and a large share of voters undecided.

Trump Endorsement Timeline

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” to be Iowa’s next governor.

The post highlighted Feenstra’s background as a fourth-generation Iowan and his experience as a county treasurer, state senator and U.S. representative, alongside a platform focused on tax cuts, energy, agriculture, border security and law enforcement.

Feenstra is competing against Zach Lahn, Adam Steen, Brad Sherman and Eddie Andrews in a fragmented five-way race.

He said he was “honored and humbled” to receive the president’s backing.

“President Trump is the greatest president of my lifetime, and he has kept every promise he made to Iowans and the American people,” he said. “I’m honored to have worked with President Trump to secure the border, deport dangerous illegal immigrants, and pass the largest tax cuts for working families in U.S. history.”

The endorsement is a late but potentially decisive lift for Feenstra, whose campaign has worked to strengthen support among the party’s MAGA-aligned base.

Despite entering the race with strong funding and backing from senior Republicans, he has struggled to fully consolidate support in recent weeks.

He must secure at least 35 percent of the vote to win the nomination outright.

Markets And Momentum

Recent polling painted a more competitive picture.

A late-May poll by JMC Analytics, conducted May 27–28 among 550 likely Republican voters, found Lahn leading Feenstra 24 percent to 22 percent, underlining how competitive the race remained days before the vote.

Prediction markets, however, have consistently favoured Feenstra, reflecting his name recognition, fundraising advantage and institutional support.

Trump’s endorsement appears to have accelerated that trend, with trader expectations shifting sharply in his favour in the final 24 hours.

Even so, Iowa’s rules leave some uncertainty.

What Happens Next

If no candidate clears the 35 percent threshold, the nomination will be decided by party delegates at a convention — meaning the outcome is not fully settled despite Feenstra’s strong showing in market pricing.

Polling places across Iowa opened at 7 a.m. and are set to close at 8 p.m. local time on Election Day.