A. Bermann, George Keywords: United States of America | Federalism | European Union | Mots clefs: Etats-Unis d’Amérique | Fédéralisme | Union européenne | ABSTRACT This course of George A. Bermann, Professor at the University of Colombia, New York, addresses the topic of the legal régime of federalism in two of the most developed divided-power systems in the world today: the European Union and the United States. A comparison between the European Union and the United States as régimes of regulatory federalism is a must, …