The Mixed Effects of Candidate Visits on Campaign Donations in the 2020 Presidential Election

Abstract

Recent scholarship on the effect of candidate visits in presidential elections has found that appearances by candidates appear to mobilize both supporters and opponents. Specifically, in the 2016 presidential election, donations to campaigns of the visiting presidential candidates increased, but—in the case of Republican nominee Donald Trump—so did donations to his opponent, Hillary Clinton. In this paper, we extend this research by assessing the effect of visits on campaign donations by presidential and vice presidential candidates in the 2020 election. We find evidence that visits by Donald Trump and Kamala Harris had strong mobilizing and counter-mobilizing effects, increasing donations to both campaigns. We find weak evidence that visits by Joe Biden increased contributions to his campaign, but we do not find evidence that his visits had a counter-mobilizing effect, and we find no evidence that visits by Mike Pence affected donations in either direction.