The States' Rights Democratic Party was a short-lived segregationist political party in the United States, active primarily in the South. It arose due to a Southern regional split in opposition to the regular Democratic Party. After President Harry S. Truman, the leader of the Democratic Party, ordered integration of the military in 1948 and other actions to address civil rights of African Americans, including the first presidential proposal for comprehensive civil and voting rights, many Southern white politicians who objected to this course organized themselves as a breakaway faction. They wished to protect the ability of states to maintain racial segregation. Its members were referred to as "Dixiecrats", a portmanteau of "Dixie", referring to the Southern United States, and "Democrat".

Harry S. Truman was the 33rd president of the United States, serving from 1945 to 1953. A member of the Democratic Party, he previously served as a United States senator from Missouri from 1935 to 1945 and briefly as the 34th vice president in 1945 under Franklin D. Roosevelt. Assuming the presidency after Roosevelt's death, Truman implemented the Marshall Plan in the wake of World War II to rebuild the economy of Western Europe and established both the Truman Doctrine and NATO to contain the expansion of Soviet communism. He proposed numerous liberal domestic reforms, but few were enacted by the conservative coalition that dominated the Congress.