Kate Kenski is an Assistant Professor in the Department of Communication at the University of Arizona and was a member of the National Annenberg Election Survey team in 2000, 2004, and 2008. She has published over twenty articles in political communication and is co-author of Capturing Campaign Dynamics (OUP 2004). Bruce W. Hardy is a doctoral candidate in the Annenberg School of Communication, University of Pennsylvania, a Senior Research Analyst in the Annenberg Public Policy Center, and a member of the 2008 National Annenberg Election Survey team. Kathleen Hall Jamieson is the Elizabeth Ware Packard Professor of Communication at the Annenberg School for Communication, University of Pennsylvania, and Director of its Annenberg Public Policy Center. She has published many books, including Echo Chamber: Rush Limbaugh and the Conservative Media Establishment (OUP 2008) and the award-winning Spiral of Cynicism: The Press and the Public Good (OUP 1997), both co-authored with Joseph N. Cappella.