Visiting Scholar in International and Public Affairs at Brown University, Watson Institute for International and Public Affairs

Professor of Political Science at UC Berkeley

Associate Professor of Political Science at Stanford, Department of Political Science

Nonresident Senior Fellow (Technology and International Relations) at Brookings Institution

Laurence D. Belfer Professor of International Affairs and Professor of History at Harvard University, International Security Program at Harvard Kennedy School

Associate Professor of Political Science at Rice University

John W. Gallivan Program in Journalism, Ethics and Democracy; American Studies at University of Notre Dame

Senior Fellow and Director, Middle East Security Program at Center for a New American Security

John M. Regan, Jr. Director of the Kroc Institute of International Peace Studies at University of Notre Dame

Associate Professor of Peace & Justice Studies at Wellesley College

Director of Research, U.S. Programs at Migration Policy Institute

Immigration Justice Campaign Director at American Immigration Council

Senior Demographer at Pew Research Center

Founding Director at U.S. Immigration Policy Center, UCSD