Professor of Law, Columbia Law School.
. For valuable comments on an earlier draft, we thank Will Baude, Seyla Benhabib, Jessica Bulman-Pozen, Josh Chafetz, Robert Ferguson, Joey Fishkin, David Fontana, Willy Forbath, Barry Friedman, Jeff Gordon, Bernard Harcourt, Olati Johnson, Laura Kalman, Jody Kraus, Daryl Levinson, Anna Lvovsky, Gillian Metzger, Henry Monaghan, Sarah Rajec, Steve Sachs, Fred Schauer, Pierre Schlag, Ian Shapiro, Ganesh Sitaraman, Larry Solum, James Stern, Peter Strauss, Cass Sunstein, Katie Tabb, Eric Talley, Calvin TerBeek, and Mark Tushnet, as well as workshop participants at Columbia Law School and William & Mary Law School. For helpful research assistance, we thank Kendall Collins and Mickey DiBattista.
