By taking the office of U.S. president Friday, Donald Trump has also taken a big step towards impeachment. That fact has crossed the mind of at least one member of the House. Jamie Raskin (D-MD), who is a constitutional law professor at American University in Washington, D.C., and the director of the university’s Program on Law and Government Leadership, said:

"Right now (January 18) it looks pretty obvious that [Trump]'s on a collision course with the Emoluments Clause" ... "He has refused to divest himself of tens or hundreds of millions of dollars of business interests he has around the world doing business with foreign governments."

...

"[The Emoluments Clause] says that no elected official, either member of Congress or the president of the United States, can accept a gift, an emolument or any payment at all from a foreign government." ... "He [Trump] just simply refuses to accept that reality. So if he goes into office and he refuses to divest himself, the moment that the first conflict comes up, that's going to look like an impeachable offense."