Keith T. Poole is the Philip H. Alston Jr. Distinguished Chair in the Department of Political Science, School of Public and International Affairs at the University of Georgia.His research interests include American Political-Economic History, Congress, Economic Growth and Entrepreneurship, and the Political-Economic History of Railroads. He is the author or coauthor of over 50 articles as well as the author of Spatial Models of Parliamentary Voting (Cambridge University Press, 2005), a coauthor of Polarized America: The Dance of Ideology and Unequal Riches (MIT Press, 2006), Ideology & Congress (Transaction Press, 2007), and of Congress: A Political-Economic History of Roll Call Voting. He has received grants from the National Science Foundation, the Carnegie-Bosch Foundation, and the Center for Political Economy. Poole is a fellow of the Political Methodology Society, and a fellow of the American Academy of Arts and Sciences.