Originalism is an ideology, not a practice. It is a brand, an affiliation, a set of background principles, an often unstated set of restorative commitments. As James Fleming says in his book, Fidelity to Our Imperfect Constitution, originalism is an ism. As an ism, Fleming writes, originalism did not exist before the 1970s: Constitutional interpretation in light of original understanding did exist, but original understanding was seen as merely one source of constitutional decision-making among several-not as a general theory of constitutional interpretation, much less the exclusive legitimate theory. This brief Comment on Fleming\u27s book takes the practice Fleming identifies--- constitutional interpretation in light of original unde...