There are consequences to theories in a world questioning the power of the President. For decades, some originalists, including Justice Scalia, maintained that the President enjoys “all” executive power. Of course, this is not the Constitution’s actual text (which refers to “the” executive power, not “all” executive power)—but a highly contestable, and potentially dangerous, addition of meaning to the text. As I demonstrate in this Article, adding to the actual text of the Constitution is common in the originalist literature on executive power, whether the precise question is the President’s removal power, the President’s power to refuse to enforce the law, or the President’s obligations under the Emoluments Clause. Using elementary princip...