Do Spitzenkandidaten debates matter? Effects on voters' cognitions and evaluations of candidates and issues

The Lisbon Treaty introduced key institutional changes to increase the relevance of elections to the European Parliament (EP). Among these was the 'Spitzenkandidaten process', which was introduced with the aim to increase the visibility of the EP elections and mobilize more citizens to turnout to vote. This article investigates the effect that the debates among the Lead Candidates had on voters' perceptions about candidates and policy issues. To do this, we administered a two-wave panel online survey to a sample of students from different European universities prior to the Spitzenkandidaten debates and right after them, following the logic of a quasi-experimental research design. Following a difference-in-differences approach, we gauge the extent to which those respondents who were exposed to the debates increased their degree of information about the candidates and changed their perceptions about the candidates and their policy positions. The findings reveal that respondents who followed the debate felt significantly more informed to make up their minds about the candidates as well as to make their vote decisions and slightly improved the perceptions of the policy positions of those candidates who they had intended to vote for.