DES MOINES, Iowa (AP) — Vice President JD Vance heads to Iowa on Tuesday, marking his first visit since taking office to the state where Republicans in less than two years will cast the initial votes to pick their party’s next presidential nominee.

Vance, who is seen as one of the GOP’s strongest potential candidates for president in 2028, is making the trip to campaign on behalf of Republican Rep. Zach Nunn, who faces a competitive race to keep his Des Moines-area seat in the November midterms.

Vance, a former U.S. senator who represented Ohio and became vice president before the end of his term, departed Washington accompanied by one of his young sons. He stopped first in Cincinnati to vote in Ohio’s primary elections and told reporters he was voting for Vivek Ramaswamy in the governor’s race. Asked about U.S. Sen. Jon Husted, who’s running in a special election to serve out the remainder of Vance’s term, Vance said he thinks Husted’s “going to do a great job” and has been “good for Ohio.”

His 6-year-old son, meanwhile, filled out a ballot for children, which the vice president showed to the poll workers when he cast his own ballot. “He voted for the Easter bunny over the tooth fairy,” he said of his son, who’s also named Vivek.

Before arriving in Iowa, Vance also was set to appear in Oklahoma City to hold a fundraiser in his role as finance chair of the Republican National Committee.

But the visit to Iowa offers Vance an opportunity to test his reception before Iowa’s voters, whose leadoff caucuses give them an outsized role in determining the next presidential nominee. Campaigning for a local congressman in his role as the sitting vice president gives him an opening chance to make an impression on Iowa Republicans, seasoned evaluators of those who seek the nation’s highest office before the campaign begins in earnest.

Vance’s appearance comes days after Texas Sen. Ted Cruz, who is also considered a possible 2028 candidate, spoke to a group of evangelical Christians who are influential in Iowa’s GOP contest.

Des Moines-based Jimmy Centers, a Republican political consultant, said the 2028 contest is “light-years away” but said the Republicans who hear Vance speak on Tuesday will be evaluating how he might measure up in an election for the White House.

“I certainly think, as of right now, Vice President Vance would probably be a straw-poll winner of Iowa Republicans for 2028. But I don’t think anyone is saying, ‘We won’t consider anybody else,'” Centers said.

Vance, who has not said whether he will run for the presidency in 2028, is scheduled to appear with Nunn at a manufacturing facility in Des Moines. His office did not comment on the trip’s impact on Vance’s political future.

The vice president’s visit follows a trip President Donald Trump made in January to tout the administration’s tax cuts, part of a string of stops they’re making this year on economic issues before midterm elections that will determine control of Congress.

But Vance’s visit comes when his own political prospects — and the message he’s expected to deliver on the economy — have been complicated by the war in Iran.

The vice president, who has long been skeptical of foreign military interventions, has seemed a reluctant defender of the 9-week-old war, for which Trump has struggled to find an off-ramp. Iowans, like much of the rest of the country, are grappling with higher gas prices because of the conflict. But the state’s farmers are also feeling the pinch of high fertilizer costs from the war and have been hurt by tariffs Trump has imposed.

While Iowa’s farmers have steadfastly supported the president, they have been looking to the White House for assurances that the current troubles won’t last.