Historian Tim Barker and editor/organizer Ben Mabie discuss the radical history of the Congress of Industrial Organizations (CIO) in the 1930s, exploring its impact on American labor, the rise of labor militants, and the right-wing fears of a revolutionary upheaval. They delve into the inclusive industrial union approach of the CIO, its response to McCarthyism, and the challenges faced by workers in promoting solidarity amidst a changing political landscape.