Party Cues, Perception Updating, and the Behavioral Consequences of Fusion Voting

A candidate running as a Democrat will surely be considered by a typical voter to be left-of-center on a unidimensional ideological space, even if the voter knows nothing of the candidate’s views other than their party affiliation. Yet what if that same Democrat is also listed as the candidate for another party, a practice known as ballot fusion? Previous research has evaluated the impact of ballot fusion (e.g. Loepp and Melusky 2021) on the voting experience; we now evaluate the clarity of minor party signals, proposing that ballot fusion can influence perceptions of candidates’ policy priorities and policy competence. We we find that voters’ impressions are only modestly impacted by policy-specific minor parties, and often not impacted at all. Our results suggest that fusion is best understood as a weak and conditional information cue.