Peter Dreier is the E.P. Clapp distinguished professor of politics at Occidental College. He is the author of The 100 Greatest Americans of the 20th Century: A Social Justice Hall of Fame (Nation Books) and an editor (with Kate Aronoff and Michael Kazin) of We Own the Future: Democratic Socialism, American Style (coming in 2020 from the New Press). He is coauthor of the forthcoming Rebels of the Diamond.