“Most discussions of this case, Trump v. Anderson, are about the politics. Commentators assume that the Court will behave as politicians. If no one is given credit for doing anything except seeking excuses for what they want to do anyway, then bad arguments get currency. The purpose of constitutional order, of course, is to provide a framework above politics, one which allows a decent sort of politics to prevail. If no one takes the meaning of the Constitution seriously, then such an order cannot long be sustained.”