作者: Candice J. Nelson

James A. Thurber is director of the Center for Congressional and Presidential Studies and professor of government at American University. Candice J. Nelson is academic director of the Campaign Management Institute and associate professor of government at American University. David A. Dulio is assistant professor of political science at Oakland University. He is the author of For Better or Worse: How Political Consultants Are Changing Elections in the United States (Suny Press, 2004).