Now that we know John Kerry will be the next democratic presidential candidate, the question is who will be his V.P.? We'll ask your suggestions. And we'll look at the history and role of our country's second in command. Mike's guests are Dante Scala, Associate Professor of Politics at the New Hampshire Institute of Politics at St. Anselm College (http://www.anselm.edu/nhiop) and Tim Walch, Director of the Herbert Hoover Presidential Library and Museum (http://www.hoover.archives.gov) and editor of At the President's Side: The Vice President in the 20th Century.