Legal experts said Trump's acceptance of a private plane from Qatar likely would violate the U.S. Constitution’s foreign emoluments clause.

There are two provisions in the U.S Constitution that place restrictions on the president receiving an emolument, or gift, from foreign governments or from federal or state governments. One provision states that Congress must approve any gift from a "King,

Boeing just won a huge contract from Qatar. But the company is troubled on several fronts – the latest being delays on new Air Force One jets for the U.S. president.