The populist phenomenon is often identified with the election of Donald Trump in November 2016. But the political, moral, and social realities for which Trump was a symbol both predated his candidacy and achieved independent fulfillment in countries as disparate as the United Kingdom, Hungary, and Brazil. At the center of the populist challenge, this volume proposes, are two questions. The first revolves around the question of sovereignty: who governs a country? This question is at the center of all contemporary populist initiatives and has been posed with increasing urgency as the bureaucratic burden of what has come to be called the administrative state has intruded more and more forcefully upon the political and social life of Western democracies. The second key question, one related to the issue of sovereignty, concerns what Lincoln called “public sentiment”: the widespread, almost taken-for-granted yet nonetheless palpable affirmation by a people of their national identity. The