UC Irvine

Abstract: A wide range of empirical scholarship has documented a partisan gap in health behaviors during the COVID-19 pandemic in the United States, but the political foundations and temporal dynamics of these partisan gaps remain poorly understood. Using an original six-wave individual panel study (n = 3,000) of Americans throughout the course of the COVID-19 pandemic, we show that at the individual level, partisan differences in health behavior grew rapidly in the early months of the pandemic and are explained almost entirely by individual support for or opposition to President Trump. Our results comprise powerful evidence that Trump support (or opposition), rather than ideology or simple partisan identity, explains partisan gaps in health behavior in the United States. In a time of populist resurgence around the world, public health efforts must consider the impact of charismatic authority in addition to entrenched partisanship.