Robert C. Lieberman Professor of Political Science at Johns Hopkins University. Contributeur externeLes contributeurs externes de la plateforme Expressions ne s’expriment pas au nom de l’Institut Montaigne. À ce titre, leurs analyses et prises de position sont strictement personnelles et ne sauraient nous être attribuées.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