Robert Y. Shapiro is a professor of political science at Columbia University. He is coauthor of The Rational Public: Fifty Years of Trends in Americans'Policy Preferences(with Benjamin I. Page) and Politicians Don't Pander(with Lawrence R. Jacobs).Martha Joynt Kumar is a professor of political science at Towson State University. She is coauthor of Portraying the Presidencyand author of Wired for Sound and Pictures(forthcoming).Lawrence R. Jacobs is an associate professor of political science at the University of Minnesota. He is author of The Health of Nations: Public Opinion and the Making of American and British Health Policyand coauthor of Politicians Don't Pander.