PhD in Political Science, University of Rochester, 1994. Professor, Department of Political Science, Washington University in St. Louis, St. Louis, MO, 2012-. John Simon Guggenheim Fellow, 2010-2011. Associate Professor, Department of Political Science and Martin School of Public Administration, University of Kentucky, Lexington, KY, 1999-2005. Robert Wood Johnson Foundation Scholar in Health Policy Research, University of Michigan, 1996-1998