HomeAuthorsRobert C. Lieberman Robert C. Lieberman Professor of Political Science at Johns Hopkins University. Robert C. Lieberman is Krieger-Eisenhower Professor of Political Science at Johns Hopkins University. He has written extensively about American politics and social policy and previously served as provost of Johns Hopkins and dean of the Columbia University School of International and Public Affairs.He is the author (with Suzanne Mettler) of Four Threats: The Recurring Crises of American Democracy, forthcoming in August 2020.04/06/2020Covid-19 Will Be the Ultimate Stress Test for the American Social Safety Ne... Robert C. Lieberman