Dr. Paul Kengor is the author of "The Devil and Karl Marx" and a professor of political science at Grove City College. He joined us to talk about the emergence of Marxism, how its "good" intentions inevitably lead to despotism, and the ways in which Marxism is woven into the ideology of the modern American left.

Paul Kengor, Ph.D., is a bestselling author whose works also include Dupes: How America's Adversaries Have Manipulated Progressives for a Century; God and Ronald Reagan; God and George W. Bush; God and Hillary Clinton; and The Crusader: Ronald Reagan and the Fall of Communism. His articles regularly appear in publications ranging from USA TODAY to The New York Times, plus numerous academic journals. A professor at Grove City College, Kengor is a frequent commentator on television and radio. Kengor earned his bachelor's degree and Ph.D. from the University of Pittsburgh and his master's from American University.