President Donald Trump defended Qatar gifting the U.S. a jet to use as Air Force One as the new fleet is still under construction.

The two planes currently used as Air Force One have been flying for nearly four decades, and Trump is eager to replace them. During his first term, he displayed a model of a new jumbo jet in the Oval Office, complete with a revised paint scheme that echoed the red, white and dark blue design of his personal plane.

The president might want to dump Air Force One for a luxury jet gifted by Qatar’s royal family.Boeing investors should take note.Today, two Boeing 747s—used interchangeably—become Air Force One when the president is onboard.