One thing to keep in mind, is that Obama flaunted federal law and got away with it due to a press that hid that fact and a judiciary that allowed him to. Trump has neither and I would hope even if he packed the court that they would call bullshit on anything unconstitutional Trump did (not saying that this is or isn't, more of a general statement). Just throwing a different way of looking at that. As far as what is or isn't legal or constitutional, until a reset its who ever has more power to exert their will, unfortunately.