Scott Keeter is director of survey research at the Pew Research Center in Washington, DC, and the co-author of four books: A New Engagement: Political Participation, Civic Life and the Changing American Citizen; The Diminishing Divide: Religion's Changing Role in American Politics; What Americans Know about Politics and Why It Matters; and Uninformed Choice: The Failure of the New Presidential Nominating System. His other published research includes articles and book chapters on survey methodology, political communications and behavior, and health care topics. Since 1980, Keeter has been an election night analyst of exit polls for NBC News. In 2001-2002, he was chair of the Standards Committee of the American Association for Public Opinion Research. From 1998 to 2002 he was chair of the Department of Public and International Affairs at George Mason University, and previously taught at Rutgers University and Virginia Commonwealth University, where he also directed the Survey Research Laboratory.