Perceptions of Immigrant Threat, American Identity, and Vote Choice in the 2016 U.S. Presidential Election

Among the central tenets of social identity theory are the arguments that individuals’ attitudes and behavior are shaped by (1) perceptions of threat by out-groups toward individuals’ in-group(s) and (2) the strength of individuals’ identification with the in-group perceived to be under threat. In this paper we explore how American identity and Americans’ perceptions of immigrant threat work together to shape their vote choices in the 2016 presidential election. With the presidential campaign of Donald Trump characterized by strong rhetoric that emphasized immigrant threat and American identity themes, we suggest that the effects of immigrant threat perceptions are amplified by individuals’ American identity, with those who have a strong American identity more likely to translate immigrant threat perceptions into support for Trump than those with weaker levels of American identity. Moreover, we consider whether the effects of American identity on vote choice are activated and moderated by individuals’ perceptions of immigrant threat. Using data from the 2016 American National Election Study, we find that the effects of immigrant threat perceptions and American identity on vote choice are magnified by each other: the effects of immigrant threat perceptions are enhanced among individuals with a strong American identity, and the effects of American identity are activated and magnified by perceptions of immigrant threat.