<P> Reuther was spurred toward merger by the threats from David J. McDonald, Murray's successor as President of the Steelworkers, who disliked Reuther intensely, insulted him publicly and flirted with disaffiliation from the CIO . While Reuther set out a number of conditions for merger with the AFL, such as constitutional provisions supporting industrial unionism, guarantees against racial discrimination, and internal procedures to clean up corrupt unions, his weak bargaining position forced him to compromise most of these demands . Although the unions that made up the CIO survived, and in some cases thrived, as members of the newly created AFL - CIO, the CIO as an organization was folded into the AFL - CIO's Industrial Union Department . </P> <P> Now, the AFL - CIO is made up of 56 national and international labor unions with 12.5 million members . </P> <Ul> <Li> John L. Lewis 1935 - 1940 </Li> <Li> Philip Murray 1940 - 1952 </Li> <Li> Walter Reuther 1952 - 1955 </Li> </Ul> <Li> John L. Lewis 1935 - 1940 </Li>

When were both the united auto workers and the congress of industrial organization formed