Gov. Ron DeSantis of Florida plunged into his first full day of presidential campaigning on Thursday after his sputtering Twitter rollout the night time earlier than, holding a sequence of interviews with pleasant conservative commentators and saying in-person occasions in Iowa, New Hampshire and South Carolina subsequent week.

For Mr. DeSantis, the speedy problem seemed to be transferring previous the tough kickoff and interesting to a mainstream Republican viewers, after a Twitter dialogue with the billionaire Elon Musk that always strayed into on-line right-wing grievances and away from the problems voters say they care about most, just like the financial system.

Acknowledging {that a} “very small share” of Republican main voters had been on Twitter, Mr. DeSantis defended his determination to announce his marketing campaign on the social media platform.

“We felt that there could be quite a lot of buzz about it,” he instructed the conservative radio host Erick Erickson on Thursday afternoon. “And I believe that was in all probability the most important story on the earth yesterday. And so hopefully we’ll get some folks concerned about our marketing campaign who could not have been in any other case.”

Mr. DeSantis additionally sought to show consideration again to his brewing conflict with former President Donald J. Trump, whose devoted supporters are one of many greatest hurdles to the governor’s candidacy. As he started his media blitz, Mr. DeSantis took a sequence of jabs at Mr. Trump, noting how incessantly the previous president attacked him.

“I believe quite a lot of what he’s doing is displaying all people that he understands that I’ve bought a very good likelihood to beat him, as a result of he doesn’t criticize anyone else now,” Mr. DeSantis instructed a New Hampshire radio station. “It’s solely me.”

Mr. Trump’s staff “wouldn’t try this in the event that they didn’t assume that I had an opportunity,” added Mr. DeSantis, who argued that he had a greater likelihood of successful unbiased voters.

On the identical time, Mr. DeSantis advised on “The Clay Travis and Buck Sexton Present” that, if elected, he may take into account pardoning Mr. Trump if he confronted federal fees — together with many different folks, together with defendants charged in reference to the Jan. 6, 2021, storming of the Capitol.

“On Day 1, I’ll have of us that can get collectively and take a look at all these circumstances, who persons are victims of weaponization or political concentrating on, and we will likely be aggressive in issuing pardons,” he mentioned, responding to a query about Jan. 6 pardons but additionally citing different circumstances that he claimed represented “weaponization” of federal legislation enforcement.

“A few of these circumstances, some folks could have a technical violation of the legislation, but when there are three different individuals who did the identical factor however simply in a context like B.L.M. they usually don’t get prosecuted in any respect, that’s uneven software of justice,” he added, referring to the Black Lives Matter motion. “And so we’re going to seek out methods the place that didn’t occur after which we are going to use the pardon energy.”

Requested instantly whether or not his evaluate may embody Mr. Trump himself, Mr. DeSantis mentioned, “I might say any instance of disfavored therapy primarily based on politics or weaponization could be included in that evaluate, regardless of how small or how huge.”

The governor had averted mentioning Mr. Trump throughout his rollout on Wednesday, a delayed livestream Twitter Areas occasion with Mr. Musk, the platform’s proprietor, that was affected by technical glitches, inflicting lifeless air and an intermittently sizzling mic.

One of many folks listening to the Twitter announcement was Mr. Trump himself — a minimum of for some time.

“I attempted for the primary half-hour,” Mr. Trump mentioned as he moved towards the seventh tee on his golf course exterior Washington. “After that, all people simply turned it off.”

Mr. Trump crowed concerning the rollout, calling it a “catastrophe” and saying, “I don’t know if it’s recoverable.”

“He’s very disloyal, however he’s bought no character,” Mr. Trump mentioned of Mr. DeSantis. “And in the event you don’t have character, politics is a really onerous enterprise.”

Requested whether or not he would take part in debates, Mr. Trump responded, “Except he will get shut, why would anyone debate?”

Subsequent up for Mr. DeSantis is a return to extra conventional campaigning, with deliberate stops in Iowa, New Hampshire and South Carolina, the primary three nominating states, from Might 30 to June 2. The marketing campaign payments this four-day swing by 12 cities and cities as the primary leg of his “Nice American Comeback Tour.”

Mr. DeSantis will begin together with his first in-person occasion of the marketing campaign in Des Moines on Tuesday. He’ll stay in Iowa on Wednesday earlier than touring to New Hampshire on Thursday and to South Carolina on Friday.

“Our marketing campaign is dedicated to placing within the time to win these early nominating states,” Generra Peck, Mr. DeSantis’s marketing campaign supervisor, mentioned in an announcement.

Campaigning in a presidential main, particularly early on, is often a grip-and-grin affair.

How Mr. DeSantis interacts with folks on the journey will likely be carefully watched. He has had some awkward moments whereas assembly voters on the path, resulting in mockery from Mr. Trump and different detractors.

Mr. DeSantis is predicted to want a victory in Iowa and a minimum of an in depth second-place end in New Hampshire to point out that he can successfully problem the previous president, particularly as different candidates, probably sensing a political opening for a bid, soar into the race.

On Thursday night time, Mr. DeSantis is scheduled to attend a reception with main donors at a resort in Miami as his staff ramps up its fund-raising efforts. Regardless of the Twitter mishap, his marketing campaign mentioned it had raised greater than $1 million on-line throughout its first hour on Wednesday night time.

Mr. DeSantis’s staff had gathered the donors in a convention room on the 4 Seasons Miami, within the metropolis’s monetary district, to hearken to the Twitter House.

It didn’t go effectively at first, in accordance with two attendees. The resort’s audiovisual system was simply as glitchy because the livestream, leaving donors attempting to pay attention on their telephones whereas getting drinks on the bar and chatting amongst themselves. However the total temper was considered one of pleasure, the folks mentioned.

On Thursday, Mr. DeSantis’s prime marketing campaign employees members instructed donors they thought the night time had been a hit, even when it didn’t proceed fairly in accordance with their authentic script. The marketing campaign has signaled that it desires to maneuver shortly, take dangers and confound its doubters.

Nonetheless, the choice to make the announcement on Twitter, a platform Mr. DeSantis mentioned on Thursday he didn’t use — and to speak extra about issues like range packages at public universities than, say, inflation — baffled many Republicans.

“He was interesting to .2 p.c of possible Republican voters with that type of announcement,” mentioned Whit Ayres, a veteran Republican pollster. “His technique is on a unique dimension than something I’ve understood prior to now.”