He was a visiting Associate Professor of Political Science at the Center, and a National Fellow at the Hoover Institution. He has authored, co-authored, or edited the books Term Limits and the Dismantling of State Legislative Professionalism (Cambridge, 2005), Adapting to Term Limits: Recent Experiences and New Directions (PPIC, 2004), The New Political Geography of California (Berkeley Public Policy Press, 2008), and The Logic of American Politics, 4th Edition (Congressional Quarterly Press, 2009).