DeLaney connects the rise of Argentina’s anti-liberal nationalist movements to the shock of early twentieth-century immigration. She examines how pressures posed by the newcomers led to the weakening of the traditional ideal of Argentina as a civic community and the rise of new ethno-cultural understandings of national identity. demonstrates that national identities are neither unitary nor immutable and that the ways in which citizens imagine their nation have crucial implications for how they perceive immigrants and whether they believe domestic minorities to be full-fledged members of the national community. Given the recent surge of anti-immigrant sentiment in Europe and the United States, this study will be of interest to scholars of nationalism, political science, Latin American political thought, and the contemporary history of Argentina.