Gary Dorrien is the Reinhold Niebuhr Professor of Social Ethics at Union Theological Seminary and professor of religion at Columbia University. His books include The New Abolition: W. E. B. Du Bois and the Black Social Gospel, Breaking White Supremacy: Martin Luther King Jr. and the Black Social Gospel, Social Democracy in the Making: Political and Religious Roots of European Socialism, and American Democratic Socialism: History, Politics, Religion, and Theory. He lives in New York City.