With a PoD of early 1932, within the United States, how could there be a revolution in the US? My ideas were the CPUSA works to more effectively build a coalition with the various parties in the USA, mostly works with poor whites and blacks (as minorities were really forgotten during the New Deal), and over time the agitation grows until they're forced to be accepted as a somewhat major faction within the US government, and maybe another crisis occurs and the parties see it as the chance for a coup?
I don't know, I'm not too knowledgeable, so please, give me your ideas. What could the parties have done? What could the government have done wrong?