I assume Trump will not separate his business interest from being President, that's not how the man is wired and so far, it appears nobody is really prepared or even able to take him on. After all laws and regulations no longer seem to matter over there.
The President is officially exempt from all rules about conflicts of interest in Congress or the organisations that comprise what we'd call the Civil Service over here. It seems it never occurred to anyone that a President would decline to put themselves above the suspicion of corruption of a conflict of interest. Possibly this is because there's never been an active businessman President before. Pretty sure whoever takes office after Trump -- if anyone ever does -- will be revising those rules...
Biting the hand that feeds IT
