Robert Dallek

Bob Dallek is an award-winning historian who specializes in the American presidency and foreign affairs. His most recent works include the new biography "Harry S. Truman," "Lyndon B. Johnson: Portrait of a President" and "An Unfinished Life: John F. Kennedy, 1917-1963." He recently retired as a Professor of History from Boston University, and previously taught at UCLA, Columbia University and the LBJ School of Public Affairs at the University of Texas.