High Quality Content by WIKIPEDIA articles! The Socialist Party USA, (also known as the Socialist Party of the United States of America is a revolutionary democratic socialist and multi-tendency political party in the United States. The party is the eponymous heir to the Socialist Party of America, which had previously adopted the name Socialist Party USA in 1962. In 1958, the Trotskyist Independent Socialist League led by Max Shachtman dissolved to join the SPA. Shachtman, whose politics had begun to move sharply to the right since his days as a Trotskyist leader, argued both for militant opposition to Soviet-style Communism and that the Socialist Party should attempt to simply re-align with the Democratic Party, losing independence. By 1972 Shachtman's Unity Caucus had taken control of the Socialist Party and blocked a resolution opposing the Vietnam War. In the 1972 presidential election, Shachtman's caucus initially backed hawkish Cold Warrior Senator Henry "Scoop" Jackson, then adopted AFL-CIO President George Meany's position of neutrality between the two candidates nominated by the major parties.