Member of the Board at Harvard Belfer Center for Science and International Affairs

Astronomy at McDonald Observatory, University of Texas at Austin

Professor, Arizona State University, School of Earth and Space Exploration in Phoenix, AZ

Professor & Director, M.A. in American Government at Georgetown University

Director, Research on Individuals, Politics & Society Lab at Vanderbilt University

Professor at Emory University

Assistant Professor of Politics at Pomona College

Professor of Political Science at Washington University in St. Louis

Associate professor of political science at Emory University

Associate Professor of Political Science at Boston University

Professor of Affordable Housing and Urban Policy at UC Berkeley

Director, Racial Justice Program at American Civil Liberties Union (ACLU)