Since the mid-1990s, Italy has made significant steps towards federalism, decentralizing political, fiscal and administrative powers, also by means of a major constitutional reform. Yet, 20 years after the beginning of this process, the country is experiencing problems in finalizing these reforms towards a stable federal architecture. This article examines Italy as a case of failed federalization. Adopting a long-term focus inspired by the ‘gradual institutional change’ approach, we argue that federalization has been trapped between a rather anomalous (and pathological) alliance between a persistent centralism, which prevailed when Italy was born as a state in 1861, and an ever-present strong tradition of localism. This approach all...