Existing research has begun to tackle the electoral consequences of affective polarization through the lens of negative partisanship. However, not equal attention has been paid to voters' polarized opinions toward political leaders and their impact on electoral behavior. This paper offers a comparative, longitudinal assessment of the relationship between negativity towards party leaders and vote choice in multi-party systems. We develop our negative personalization hypothesis and test it

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... ally on an original pooled dataset featuring 109 national election surveys from 14 Western European parliamentary democracies collected over the last six decades. Our findings confirm the existence of a robust relationship between negative party-leader evaluations and vote choice. Furthermore, the results demonstrate a sizable growth in the incidence of negative personalization across time, now of a magnitude that compares to that exerted by in-party-leader evaluations. This finding constitutes a central innovation adding to the personalization of politics literature.