Taxpayers would likely foot the bill to retrofit President Trump's new jet, which could be more than twice the plane's $400 million value.

The nation of Qatar offered the Trump administration a Boeing 747-8 for use as Air Force One. Trump called the plane a "gift," in a post on his social media site, Truth Social. A representative of the administration clarified that Qatar "has offered to donate a plane to the Department of Defense," not to Trump himself.

Any donation to this government is always done in full compliance with the law,” White House press secretary Karoline Leavitt said Monday.