The Globe and Mail reports in its Friday edition that on the first foreign trip of his second term, U.S. President Donald Trump was aiming to cast himself as dealmaker-in-chief, announcing hundreds of billions of dollars worth of business agreements across Saudi Arabia, Qatar and the United Arab Emirates. The Globe's Adrian Morrow writes that one prospective transaction has captured virtually all the attention this week: the gift of a modified Boeing 747 "palace in the sky" jet for Mr. Trump from the Qatari royal family. Quite apart from the optics of the leader of the world's wealthiest democracy travelling in hardware donated by an autocratic fiefdom, the idea may be prohibited by the U.S. Constitution. Given the special security and operational requirements of any plane that serves as Air Force One, the Qatari jet would not actually be free: U.S. taxpayers would have to shell out a lot of money -- possibly more than the value of the plane -- to retrofit it. During Mr. Trump's first term, the federal government signed a $3.9-billion (U.S.) "fixed" contract with Boeing to deliver two replacement Air Force Ones by 2024. The new planes have been plagued by delays and are not expected to be ready until at least 2027.