Jimmy Hoffa means of leveraging union strength at one company, to then move to organize workers, and finally to win contract demands at other companies. This process, which took several years starting in the early 1930s, eventually brought the Teamsters to a position of being one of the most powerful unions in the United States. Trucking unions in that era were heavily influenced by, and in many cases controlled by elements of, organized crime. For Hoffa to unify and expand trucking unions, he had to make accommodations and arrangements with many gangsters, beginning in the Detroit area. Organized crime influence on the
Jimmy Hoffa a case for his union leadership skills being of more value to the nation, by keeping freight running smoothly to assist the war effort. At the 1952 IBT convention in Los Angeles, Hoffa was selected as national vice-president by incoming president Dave Beck, successor to Daniel J. Tobin, who had been president since 1907. Hoffa had quelled an internal revolt against Tobin by securing Central States regional support for Beck at the convention. In exchange, Beck made Hoffa a vice-president. The IBT moved its headquarters from Indianapolis to Washington, D.C., taking over a large office building in the capital in