Constitutional law / Geoffrey R. Stone, Edward H. Levi Distinguished Service Professor of Law, University of Chicago Law School; Louis Michael Seidman, Carmack Waterhouse Professor of Constitutional Law, Georgetown University Law Center; Cass R. Sunstein, Felix Frankfurter Professor of Law, Harvard Law School; Mark V. Tushnet, William Nelson Cromwell Professor of Law, Harvard Law School; Pamela S. Karlan, Kenneth & Harle Montgomery Professor of Public Interest Law, Stanford Law School.