William Leuchtenburg talked about his book In the Shadow of FDR: From Harry Truman to Barack Obama. William Leuchtenburg is the author of five other books on President Franklin Roosevelt. He talked about the continuing relevance of President Roosevelt for assessing executive power and the enduring importance of his name in party politics and policy formulation. Jonathan Alter moderated. He is the author of The Defining Moment: FDR's Hundred Days and the Triumph of Hope, published by Simon and Schuster.