I don't know why people even still talk about "Trump's Wall" as if he's really going to do it. All it is is isolationist rhetoric. Maybe he'd do some photo-op where he flies out and lays the first few bricks, but people will quickly forget about the wall as he introduces the next act and the 24 hour news cycle moves along. There will never be a finished wall. Construction will be token, just enough to keep people believing something is happening, if that.