Treasury Secretary Steven Mnuchin submitted an official request to use a government jet for his honeymoon travel, according to a new report by ABC News.

Reporters Justin Fishel, Brian Ross, and Jordyn Phelps write that although Mnuchin didn’t end up using the jet in the end, the request caused the Treasury Department’s inspector general to look into the matter.

A Treasury Department spokesperson told ABC that Mnuchin only wanted the government plane so he could have a secure line of communication. The reporters point out, though, that “aside from the President and Vice President, travel on military aircraft is typically reserved for cabinet members who deal directly with national security, such as the Secretaries of Defense and State.”

This isn’t the first time questions have been asked about Mnuchin and government resources. The Treasury Department inspector general’s office confirmed last month that it was reviewing a trip Mnuchin and his wife Louise Linton took to Kentucky on the day of the solar eclipse.

On that trip, the Secretary and his wife did fly on an Air Force jet. He attended an event in Louisville, Kentucky and then went to Fort Knox. But an ethics watchdog questioned whether Mnuchin scheduled the one-day trip specifically to coincide with the eclipse. Mnuchin said he would reimburse the government for the trip.

That’s the trip that drew public attention because Linton posted a picture of the couple disembarking from their government plane on Instagram — and then responded to a critical commenter with a lengthy rant. “Have you given more to the economy than me and my husband? Either as an individual earner in taxes OR in self sacrifice to your country? I’m pretty sure we paid more taxes toward our day ‘trip’ than you did,” she wrote.

Mnuchin is a former Goldman Sachs banker and hedge funder with a net worth that could be as high as $500 million, according to an analysis of his financial disclosures by Fortune. He married Linton, his third wife, in June and the two honeymooned in Scotland, France, and Italy afterward.