In light of the instability of several Central Eastern European democracies following their accession to the European Union, most dramatically embodied by the ‘constitutional revolution’ taking place in Hungary since April 2010, this paper offers a critical reading of the dominant, rational-institutionalist model of democratic consolidation. Drawing on the Hungarian case, it argues that the conditions set out by this model are insufficient for ensuring a democratic regime against erosion. On this basis, the paper considers additional elements to understand Fidesz’s reforms: the importance of deeper commitments to democracy among the leadership of mainstream parties, and the pivotal role of party strategies of citizen mobilization in the consolidation of young democracies. Drawing on these insights, the paper argues for approaching democratic consolidation as an agent-led process of cultural change, emphasizing the socializing role of mainstream parties’ strategies of mobilization in the emergence of a democratic political culture. The last section concludes with methodological and empirical considerations, outlining a three-fold agenda for future research.