I guess you know more about this than Richard Briffault, a Columbia Law School professor who specializes in government ethics?
Trump said Monday that the plane isn't a gift to him, but to the Department of Defense. He added that it will be decommissioned after his term for his presidential library, and that he will not use it after leaving office.
Richard Briffault, a Columbia Law School professor who specializes in government ethics, says that distinction doesn't matter: If the plane goes to Trump's presidential library after he leaves office, "then it's not really a gift to the United States at all."
Briffault says accepting the plane would constitute a personal gift and a "pretty textbook case of a violation of the Emoluments Clause." Like other ethics experts, he worries it could lead to Trump feeling beholden to the Qatari government.
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"[Gifts are] designed to create good feelings for the recipient and to get some kind of reciprocity," Briffault says. "But the thing that [Trump] can give, of course, is public policy — weapons deals or whatever. And then, of course, it's an incentive to other countries to give similar gifts as another way of influencing presidential decision-making."
Jordan Libowitz, vice president in communications for the nonprofit watchdog Citizens for Responsibility and Ethics in Washington (CREW), told NPR that the gift is especially concerning because of Trump's personal business dealings in the Gulf and in Qatar specifically.