Geoffrey Cowan president of the Annenberg Foundation Trust, professor at the University of Southern California and the author of Let the People Rule: Theodore Roosevelt and the Birth of the Presidential Primary (W. W. Norton & Company, 2016), and David Eisenhower, Director of the Institute for Public Service at the Annenberg School for Communication at the University of Pennsylvania, the son-in-law of President Nixon and the grandson of President Eisenhower, review the audio history of Republican nominating conventions.