Nolan McCarty is Associate Dean and Professor of Politics and Public Affairs at the Woodrow Wilson School at Princeton University. His recent publications include Polarized America: The Dance of Ideology and Unequal Riches (2006 with Keith Poole and Howard Rosenthal), The Realignment of National Politics and the Income Distribution (1997 with Keith Poole and Howard Rosenthal), as well as many articles in periodicals such as the American Political Science Review and the American Journal of Political Science.