Few days before the general election in Spain, some surprising evidence emerges from the ICCP (Issue Competition Comparative Project) pre-electoral survey: what we could call a return of ideological polarization; and along classic lines of conflict that have characterized the Spanish party system in past decades. In a nutshell, this is due to the relevance of relatively new parties such as Podemos and Vox, whose constituencies appear ideologically consistent in terms of left-wing or right-wing stances across multiple issues. This sets these Spanish parties apart from other recent challenger parties in other European countries, which mix and match both...