The White House Correspondents Association says it is disturbed that no reporters from either The Associated Press, Bloomberg or Reuters were allowed on Air Force One to cover President Donald Trump's trip to the Middle East on Monday.

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

Trump says he'd be "stupid" to not accept the aircraft "free of charge", after Qatar denied it amounted to a gift.