Christopher Ellis is assistant professor of Political Science at Bucknell University. He received his Ph.D. from the University of North Carolina, Chapel Hill and previously taught at North Carolina State University. His work has been published in the Journal of Politics, Political Research Quarterly, Political Science and Politics, Electoral Studies and the Journal of Public Opinion and Parties. James A. Stimson earned his B.A. from the University of Minnesota and his Ph.D. from the University of North Carolina. Stimson is former President of the Midwest Political Science Association and Treasurer of the American Political Science Association. He has authored or co-authored six books: Yeas and Nays (with Donald R. Matthews), Issue Evolution (with Edward G. Carmines), Public Opinion in America, The Macro Polity (with Robert S. Erikson and Michael B. MacKuen), Tides of Consent and Mandate Politics (with Larry Grossback and David A. M. Peterson). A Fellow in the American Academy of Arts and Sciences, he has won the Heinz Eulau and Gladys Kammerer Awards of the American Political Science Association. He is founding editor of Political Analysis and has authored articles in all the major journals of political science.