Mark Graber is the Regents Professor at the University of Maryland Francis King Carey School of Law. He is the author of more than 10 books or edited collections, including “Rethinking Abortion” (Princeton 1996) and “Dred Scott and the Problem of Constitutional Evil” (2013). He also has written more than 100 published articles on constitutional law, constitutional theory, constitutional development, constitutional history, and pretty much every other topic in which “constitutional” is used as an adjective.