McCain looks for a running mate John McCain says he has a list of possible running mates. Does he shore up his conservative base? Choose a woman? Or none of the above. A historian takes a look at how the choice of a number two influences the presidential campaigns past and present.9:06 a.m.
Tim Walch: Director of the Herbert Hoover Presidential Library and Museum in West Branch, Iowa. He's the editor of the book, "At the President's Side: The Vice Presidency in the 20th Century".
Joel Goldstein: Professor of law at the St. Louis University School of Law. He's the author of "The Modern American Vice Presidency: The Transformation of a Political Institution" and he contributed to "At the President's Side."
The fight against hunger Longtime hunger advocate Tony Hall talks about what U.S. politicians from both parties can do to eliminate hunger, and why their efforts always seem to fall short.10:06 a.m.
Tony Hall: Former congressman from Ohio and United States Ambassador to the United Nations Agencies for Food and Agriculture. He's been nominated for a Nobel Prize three times. Hall is the author of "Changing The Face of Hunger."