To step back from the Armageddon-level options that still follow the U.S. president around in a briefcase, there remains only a post hoc and in the highest sense political check on a president’s interpretation of Article 2 powers. In non-global-apocalyptic but merely national apocalyptically extreme cases, a president may even interpret his designated and implied powers to allow for flagrantly unconstitutional measures: We return as frequently to Lincoln during the Civil War, nullifying the requirement for writ of habeas corpus, generally prosecuting a war against insurrectionists on the basis of his own judgment until eventually recognized by a wartime Supreme Court. At such points, it is “up to history” to determine whether the executive has done the right thing – will get a monument or a tearful farewell under threat of impeachment.