Replication Data for: Populism and Candidate Support in the US: The Effects of “Thin” and “Host” Ideology

Much of the contemporary literature on populism focuses on its status as a \"thin\" ideology comprising three key components: people-centrism, anti-elitism, and anti-pluralism. Populist politicians pair this \"thin\" ideology with extreme positions on policy issues such as immigration or taxation (referred to as host or \"thick\" ideologies). A recent study using German samples leveraged conjoint experiments to disentangle the effects of these appeals on vote choice. The results not only showed that extreme host-ideological positions mattered more than so-called \"thin\" populist appeals, but also that effects of populist appeals were nearly identical among populist and non-populist voters. Our replication in the US context reaffirms both the importance of host-ideological positions and the lack of heterogeneous effects by voters' \"thin\" populist attitudes. Furthermore, by uncovering some divergence from the German case (e.g., anti-elite appeals trumping people-centric appeals), we highlight the need to experimentally examine effects of populism's constituent components across contexts.