The Causal Effects of a Trump Endorsement on Voter Preferences in a General Election Scenario

Former President Trump's persistent influence over Republican politics divides those who argue that he mobilizes otherwise apathetic voters against those contending he mobilizes Democrats at down-ballot Republicans' expense. Scholars and pundits alike question whether policy still matters in the face of increasingly strong personas like the former president's. Using a survey experiment, we find suggestive evidence that Trump's endorsement in a general election reduces the likelihood of voting for a hypothetical Republican candidate. We also test the effect of policy stances and find evidence that Republican respondents value policy stances over an endorsement, but Democrats show no signs of prioritizing one more than the other. However, when shown a hypothetical candidate with unorthodox policy stances, the mere mention of a Trump endorsement leads members of both parties to demonstrate significant changes in the likelihood of voting for that candidate. Ultimately, we show that elite signals can attenuate support derived from policies.