Two nice traditions converged in Des Moines on Saturday night time when marriage ceremony crashing got here to Iowa politics.

Iowa State Representative Taylor Collins welcomed an surprising visitor to his marriage ceremony reception: Gov. Ron DeSantis of Florida. Mr. DeSantis and his spouse, Casey, strode simply behind the newlyweds into the occasion, held at a Beaux-Arts-style constructing within the state’s capital, to cheers and a standing ovation, in keeping with videos posted on social media and confirmed by an attendee. They then spent an hour mingling with roughly 150 visitors.

The last-minute table-grabbers had been invited by the bride, Savannah Collins, to the shock of her husband, who had previously endorsed Mr. DeSantis’s presidential bid, in keeping with two individuals conversant in the occasion. Several different state legislators who’ve endorsed Mr. DeSantis have been additionally in attendance.

For the governor, who’s struggling to achieve floor on former President Donald J. Trump, according to recent polls, the looks was a transparent try to exhibit that he possessed the interpersonal contact that has generally appeared missing in his presidential marketing campaign.

Mr. DeSantis’s allies mentioned he noticed a path to victory in Iowa’s January caucus by an aggressive plan to go to every of the state’s 99 counties, meet voters in individual and win endorsements from native officers. As of Saturday, Mr. DeSantis had visited almost 30 counties.

After making fewer visits to the state than a few of his lower-polling rivals for the Republican nomination, Mr. DeSantis lately began to step up his appearances in Iowa, the place polling reveals he’s performing higher than he’s nationally. His marketing campaign lately has centered on the state as he has labored to place himself because the Trump various after dropping floor earlier this 12 months.

Before dropping in on the marriage, Mr. DeSantis had spent Friday and Saturday on a bus tour of northeast and central Iowa, the place he made frequent stops to handle voters in small teams, reply questions and interact within the retail politics that Iowa voters anticipate, akin to scooping ice cream for locals at a dairy retailer.

“You’ve got to show up in people’s communities and you’ve got to be able to make the case about why you should be the nominee of the party and the 47th president of the United States,” Mr. DeSantis informed a bunch of a number of dozen voters at a Pizza Ranch restaurant in Grinnell, Iowa, on Saturday afternoon.

The feedback have been a thinly veiled assault on Mr. Trump, who has skipped occasions hosted by distinguished evangelical Christian leaders and who lately picked a struggle with Iowa’s standard Republican governor, Kim Reynolds. “I think anybody who’s not willing to do that is basically telling you that they don’t think they have to earn your vote,” he continued. “And I think that’s a mistake.”

Both Mr. Trump and Mr. DeSantis, in addition to the remainder of the presidential area, are set to attend the Iowa State Fair, a significant occasion on the political calendar that begins this week.

Polling reveals that Mr. DeSantis’s efforts are enjoying higher in Iowa than in different components of the nation. Iowa Republicans are extra probably than voters nationwide to see Mr. DeSantis as “moral,” “likable” and “able to beat Joe Biden,” though he nonetheless lags Mr. Trump within the state by 24 proportion factors total, according to the latest New York Times/Siena College poll.

While Mr. DeSantis has had success attracting endorsements from state lawmakers like Mr. Collins, Mr. Trump has way more backing from members of Congress, partly due to the previous president’s consideration to non-public relationships, which has included reaching out to lawmakers once they or their relations fall unwell and hosting them for dinners.

Mr. Trump can be identified to drop in at weddings held at Mar-a-Lago, the unique Palm Beach social membership that serves as his residence, in addition to at his Bedminster golf resort in New Jersey.

This was not Mr. DeSantis’s first try at shocking Iowa voters.

In May, after a busy day of campaigning across the state, he made an unscheduled night cease at a barbecue restaurant in Des Moines, not removed from the place Mr. Trump had canceled an earlier rally (due to dangerous climate, in keeping with Mr. Trump’s marketing campaign).

After Mr. DeSantis’s surprising entrance to the marriage, Mr. Collins celebrated on social media, saying: “You never know who will crash your wedding reception during caucus season! An honor to be on #TeamDeSantis.”

In response to an e-mail looking for remark, he wrote: “It was great for our family and friends from across the country to experience firsthand what it’s like to be in Iowa during caucus season. I can’t think of a better way to end the night than seeing everyone spend time with the governor.”

Maggie Haberman contributed reporting from New York.