John W. Kingdon is Professor Emeritus of Political Science at the University of Michigan in Ann Arbor. He is the author of Agendas, Alternatives, and Public Policies (1984, 1995, 2011), which received the 1994 Aaron Wildavsky Award for an enduring contribution to the study of public policy, given by the public policy section of the American Political Science Association. His other books include America the Unusual (1999) and Congressmen's Voting Decisions (1973, 1981, and 1989).