W.E.B. Du Bois joined the Communist Party of the United States in 1961 at the age of 93. This talk will examine the long path Du Bois took towards becoming a Socialist. Du Bois embraced Marxist ideas in order to fight racism, imperialism and especially American capitalism. He also supported Stalin's Soviet Union. The talk will consider how Du Bois's legacy as a fighter for the emancipation of the working-class is important to struggles in our time against police violence, neoliberalism and U.S. imperialism.