Right wing SCOTUS
He'll replace the most conservative member, Scalia, with another conservative member. Unless one of the liberals dies or decides to retire before 2020, it will be the same makeup as it was before. He isn't going to change the face of SCOTUS any more than Obama did.
It is too early to know for sure, but given that Trump will be unable to follow through on the promises to the angry white working men who put him over the top, like bringing jobs back to the US, getting the US out of NAFTA, putting tariffs on China, etc. and probably not even building the wall (let alone making Mexico pay for it) I think it is highly likely that whatever democrat wins his or her party's nomination in 2020 will make him a one term president. As long as their health holds out, the liberal members of SCOTUS are likely to stay put at least until then - if they were looking to leave sooner they probably would have left already knowing Obama would replace them with someone of like views.
Biting the hand that feeds IT
