Well, well, the President and Vice-President are exempt from conflict of interest laws. See “Fact Checker: Trump’s claim that ‘the president can’t have a conflict of interest’”, Glenn Kessler and Michelle Ye Hee Lee, Washington Post, 2016-11-23.
“And no Person holding any Office of Profit or Trust under them, shall, without the Consent of the Congress, accept of any present, Emolument, Office, or Title, of any kind whatever, from any King, Prince, or foreign State.”
Excerpt From: Edward Samuel Corwin. “The Constitution of the United States of America: Analysis and Interpretation.” iBooks
The article pointed out that Congress has excepted the President and Vice-President from this clause "on the theory that the presidency has so much power that any possible executive action might pose a potential conflict.”