PhD in political science, Emory Universtiy, 1983. Ethan A.H. Shepley Distinguished University Professor, Washington University in St. Louis, 2014-. Fellow of the American Academy of Arts and Sciences and the American Academy of Political and Social Science. Provost Professor of Law and Political Science and the Rader Family Trustee Chair in Law, University of Southern California School of Law. Edward Mallinckrodt Distinguished University Professor of Political Science, Washington University in St. Louis. Beatrice Kuhn Professor of Law and Political Science , Northwestern University, Chicago, IL