A native Chicagoan, Warren received his B.A. from the University of Illinois and his M.A. and Ph.D. from Yale University. He has been a Post-Doctoral Scholar and Visiting Faculty at the Harris School of Public Policy at the University of Chicago, and has received research fellowships from the Ford Foundation, CUNY, the University of Notre Dame and the Russell Sage Foundation. He has also worked with several national and local organizations including the Leadership Conference on Civil Rights, American Rights at Work, AFL-CIO, UNITE-HERE, SEIU, UFCW, Steelworkers, NGLTF Policy Institute, and Jobs with Justice. He currently serves on the boards of the Applied Research Center, Center for Community Change, and Columbia Law School’s Center for Social and Institutional Change.