Professor Emeritus of the Pacific Rim at Claremont McKenna College

Senior National Security Fellow at Center for Immigration Studies

Professor of Politics and International Affairs at Princeton University

Faculty Affiliate at U.S. Immigration Policy Center, UCSD

Professor of Political Science and Senior Fellow at the Freeman Spogli Institute for International Studies at Stanford, Department of Political Science

President, Inter-American Dialogue at Inter-American Dialogue

Research Professor at the Centre for British Politics and Government at King's College London in London, ENG

Professor of the History of Monarchy at the University of London in London, ENG

Professor of History at Durham University England in Durham, ENG

Director of the Institute of Commonwealth Studies at the University of London in London, ENG

Associate Professor of History at Brown University

Professor of History at Northwestern University

History Professor at the University of Warwick in Coventry, ENG

Instructor in History at the University of Toronto in Toronto, ON

Founder and CEO at Advance Peace at Mozaic Media + Communications

Professor of Criminology, Law and Society at UC Irvine in Irvine, CA

Faculty Affiliate at U.S. Immigration Policy Center, UCSD

Professor of Political Science and Senior Fellow at the Freeman Spogli Institute for International Studies at Stanford, Department of Political Science

National and Homeland Security Professor & Director, Safe Communities Institute at USC Dornsife College

Senior National Security Fellow at Center for Immigration Studies