The authoritarian and nationalist parties that have arisen within modern democracies offer new paths to wealth or power for their adherents. Describing politicians, journalists, intellectuals, and others who have abandoned democratic ideals in the UK, U.S., Spain, Poland, and Hungary, Applebaum reveals the patterns that link the new advocates of illiberalism and charts how they use conspiracy theory, political polarization, social media, and nostalgia to change their societies