This paper explores the potential of elections to change our emotions and modify the relevance that voters assign to self-interest and group-identity issues. We examine this question by analyzing the 1998–2016 period of the Catalan and Basque regional elections. The analysis exploits that Basques pushed to leave Spain in the early 2000s, and Catalans pursued independence about fifteen years later. When the separatist goal emerges, two issues gain relevance. First, there is a significant rise of identity politics, associated with the territory’s culture and language, to the detriment of other issues that traditionally explain vote choice, such as the left-right ideology, the degree of regional autonomy, or the economic discontent. Second, the territory becomes more divisive, big cities align against dominant separatist parties, and rural areas align with independentists. We conclude that material self-interests dilute and group-identity factors emerge to determine vote decisions in times of national dissolution.
