Trump was claiming that he would ban mexican remmitances which would basically push the price of bitcoin up since it would give bitcoin a real reason to be used by a lot of mexicans. Bitcoin in this case would already be a problem for Trump... so yeah I don't see how any president benefits from bitcoin.
He is now famous and known for saying something before thinking about it and most of them very controversial and outright offensive. All the same, there's no point pinching a parcel one is about to open, 20th of January is by the corner and he would become the president, let's just watch and see how he shoots himself in the leg.
Something worthy of note, is that his plan to make America great again entails printing of money from thin air and we are all witnesses of the consequences to follow, eventually bitcoin would be the ultimate winner.