It was a photograph op meant to turbocharge Republican voters, one exhibiting Gov. Ron DeSantis of Florida posing in entrance of a helicopter on Sunday on the southern border in Texas.

But the show is creating an undesirable highlight for Mr. DeSantis: The helicopter is funded by Texas taxpayers, elevating questions concerning the political nature of the flight and its price.

Federal regulation requires presidential candidates to pay the fair-market charge for noncommercial air journey and reimburse suppliers of flights. In this case, the Texas Department of Public Safety owns the 2008 Eurocopter, based on a Federal Aviation Administration database of plane tail numbers.

Additionally, ethics guidelines in Texas bar officials there from using state resources in support of political campaigns.

Mr. DeSantis’s workplace advised that he was visiting the border in a twin capability, as each governor and presidential candidate, however his official schedule as governor omitted point out of it. Jeremy Redfern, a spokesman for Mr. DeSantis within the governor’s workplace, referred questions on Wednesday concerning the helicopter flight to the Texas Department of Public Safety.

That company stated Mr. DeSantis was briefed throughout his go to about joint immigration enforcement actions between Florida and Texas on the border, a part of a program generally known as Operation Lone Star.

“The briefing included an aerial tour which was provided by D.P.S. in order to give Gov. DeSantis a clearer understanding of how Florida’s resources are being utilized along our southern border and see the challenges first hand,” Ericka Miller, a spokeswoman for the Texas Department of Public Safety, stated in an electronic mail on Wednesday.

Mr. DeSantis’s marketing campaign shared the helicopter picture on Twitter on Monday, the identical day that he proposed a series of hard-right immigration policies in a marketing campaign speech in Eagle Pass, a small Texas border metropolis.

Reflecting the break up nature of his duties, Mr. DeSantis on Sunday wore a short-sleeve white shirt that stated “Governor Ron DeSantis” on the appropriate and “DeSantis for President” on the left.

Mr. DeSantis’s use of the taxpayer-funded helicopter was first reported by The Daily Beast, which additionally famous that he took a ship tour of the Rio Grande as a part of his go to. A Fox News reporter accompanied him by air and by water.

That boat is owned by the Florida Fish and Wildlife Conservation Commission, The New York Times confirmed. The state company had already deployed the vessel there via a mutual-aid association, and as a part of the Operation Lone Star program.

Mr. Redfern, in an announcement, challenged that there was something inappropriate about Mr. DeSantis’s journey on the Florida taxpayer-owned boat.

“Participating in a routine patrol with F.W.C. is not outside the purview of the governor’s job as the state’s chief executive,” he stated.

Myles Martin, a spokesman for the Federal Election Commission, stated in an electronic mail on Wednesday that he was not in a position to remark about particular candidates or their actions. But he identified that federal marketing campaign finance guidelines require candidates to reimburse federal, state or native authorities entities when utilizing plane owned by them to marketing campaign.

Political committees should additionally pay again prices related to others technique of transportation, together with boat journey.

Mr. DeSantis has beforehand confronted accusations that he’s inappropriately blurring the strains between his official duties and his marketing campaign.

As Mr. DeSantis ready to signal Florida’s record-breaking funds earlier this month, lobbyists and state lawmakers stated the governor’s workers known as them looking for both marketing campaign contributions or political endorsements — outreach that would normally be made by members of Mr. DeSantis’s campaign. The conversations left the lobbyists and lawmakers afraid that Mr. DeSantis would veto their tasks from the funds if they didn’t comply, they stated.

And when Mr. DeSantis signed the funds, he vetoed a number of tasks sponsored by state Senator Joe Gruters, a Republican who has endorsed former President Donald J. Trump, the Republican front-runner. Mr. Gruters accused the governor of retribution, calling him “meanspirited” and saying he had chosen to “punish ordinary Floridians” due to a political disagreement.

The governor’s workplace denied that the vetoes had been political. And at a news convention in Tampa final week, Mr. DeSantis stated there was nothing incorrect with aides in his workplace supporting his marketing campaign of their “spare time.”

But Nikki Fried, the chair of the Florida Democratic Party, filed state ethics and elections complaints towards three high staffers within the governor’s workplace. “Any reasonable person could infer from the reporting that our governor was holding the state budget hostage in exchange for political endorsements and donations — actions that are both unethical and illegal,” Ms. Fried stated in an announcement.

Earlier this 12 months, Mr. DeSantis additionally signed a invoice shielding his travel records from public disclosure, stopping an accounting of the taxpayer funds getting used to cowl safety and different prices throughout his marketing campaign journeys.