Boeing was supposed to deliver a replacement for Air Force One last year, but significant delays have cost the plane maker billions on the project. They have also drawn ire from the president, who told reporters aboard Air Force One in February that he was “not happy with Boeing” and may purchase a plane elsewhere.

President Donald Trump being offered a luxury plane as a gift from Qatar's royal family has sparked legal scrutiny.

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.