Two of the great recurring questions in constitutional law are the authority of the Supreme Court and the proper method for interpreting the Constitution. Larry Alexander has, of course, written important work on both questions. And on each he takes a hard-nosed but somewhat unfashionable position: He maintains that the Supreme Court has supreme interpretive authority to which others should defer, and also that the Constitution is controlled by its original meaning. But one of these positions is, and must be, wrong.