Jimmy Hoffa Agreement. He played a major role in the growth and development of the union, which eventually became the largest (by membership) in the United States with over 2.3 million members at its peak, during his terms as its leader. Hoffa became involved with organized crime from the early years of his Teamsters work, and this connection continued until his disappearance in 1975. He was convicted of jury tampering, attempted bribery and fraud in 1964, in two separate trials. He was imprisoned in 1967 and sentenced to 13 years. In mid-1971, he resigned as president of the union as part of
Trade union independent and syndicated radio shows in the United States. Benjamin Brown, "Trade Unions, Strikes, and the Renewal of Halakhic Labor Law: Ideologies in the Rulings of Rabbis Kook, Uziel, and Feinstein" Trade union A trade union, also called a labour union or labor union (US), is an organization of workers who have come together to achieve many common goals, such as protecting the integrity of their trade, improving safety standards, and attaining better wages, benefits (such as vacation, health care, and retirement), and working conditions through the increased bargaining power wielded by the creation of a monopoly of the workers.