Vice Presidential Debates

Guests:

Timothy Walch, director of the Herbert Hoover Presidential Library, author of "At the President's Side: The Vice Presidency in the 20th Century."

Bill Benoit, professor of communication at University of Missouri-Columbia, editor of the Journal of Communication

Shanto Iyengar, director of the Political Communication Lab, Harry & Norman Chandler Professor of Communication and professor of political science at Stanford University

Henry Brady, Class of 1941 Monroe Deutsch Professor of Political Science and Public Policy at University of California at Berkeley, director of UC Berkeley's Survey Research Center, UC DATA, and California Census Research Data Center