The 80th Congress refers to the meeting of the United States Congress from January 3, 1947, to January 3, 1949. It was notable for being the first Congress after World War II and was characterized by a Republican majority in both the House of Representatives and the Senate. This shift marked a significant change in legislative priorities and policies following the Democratic dominance during the New Deal era. During the 80th Congress, key legislation included the Taft-Hartley Act, which aimed to limit the power of labor unions, and the Marshall Plan, which provided aid to rebuild European economies. The Congress also focused on issues related to the emerging Cold War, including containment strategies against the influence of the Soviet Union.