I wouldn't be surprised if there will in fact be a new border wall. If there's anything I've learned from this election cycle, it's that many of us have repeate

I wouldn't be surprised if there will in fact be a new border wall. If there's anything I've learned from this election cycle, it's that many of us have repeatedly and consistently grossly underestimated what's possible in politics. Presidents generally do try to fulfill their campaign promises, and building the wall is the biggest, most concrete, and earliest campaign promise he made. Realistically, it's also one of the most straightforward of all his promises to achieve, and at $25-30B it's not very expensive in the grand scheme of a presidency. Its overall effect will be minimal, meaning that it won't wreak havoc, it won't do much good either (in fact it might ironically backfire by keeping people in instead of out), but it will satisfy his supporters.