Constitutional theory : arguments and perspectives / Michael J. Gerhardt (Samuel Ashe Distinguished Professor in Constitutional Law & Director, Center for Law and Government, University of North Carolina School of Law), Stephen M. Griffin (Rutledge C. Clement, Jr. Professor in Constitutional Law, Tulane University School of Law), Thomas D. Rowe, Jr. (Elvin R. Latty Professor of Law Emeritus, Duke University School of Law), Lawrence B. Solum (Professor of Law, Georgetown University Law Center).