Fraser M. Ottanelli examines the history of the Communist Party of the United States (CPUSA) from the stock market crash to the reconstitution of the Party in 1945. He explains the appeal of the CPUSA and its emergence as the foremost vehicle of left-wing radicalism during these years. Most studies of the CPUSA have focused on either the grass-roots activities of the Party's members or the Party's relations with the Communist International...