Paul Kengor, PhD, is a bestselling author whose works include 11 Principles of a Reagan Conservative, The Crusader: Ronald Reagan and the Fall of Communism and The Communist: Frank Marshall Davis: the Untold Story of Barack Obama's Mentor. His articles regularly appear in publications ranging from USA Today to the New York Times, plus numerous academic journals. A frequent commentator on television and radio, Kengor earned his bachelor’s degree and PhD from the University of Pittsburgh and his master’s from American University.