The personalization thesis claims that leaders’ influence over voters has increased. While research consistently shows that candidates influence party choice, we know little about their effects on the prior decision to turn out in elections. This article represents the first study to examine the relationship between candidate trait evaluations and turnout decisions in the American context and the first longitudinal study of the phenomenon. The study utilizes ANES data to test three hypotheses drawn from theories on electoral participation and personalized politics in U.S. presidential elections between 1980 and 2020. The results show that while trait evaluations of Republican candidates consistently affect turnout, perceptions of Democratic candidates’ competence mobilize voters in specific elections. Moreover, individual polarization promotes turnout, particularly among partisan dealigned voters with different perceptions of the candidates’ competence. The results indicate a personalization of electoral participation that can benefit civic engagement and democratic quality.