In recent years, two apparently contradictory but, in fact, complementary socio-political phenomena have been reinforcing each other in the European urban realm: the re-scaling of nation-states through “devolution” and the emergence of two opposed versions of “nationalism” (i.e., the ethnic, non-metropolitanised, state-centric, exclusive, and right-wing populist nationalism and the civic, metropolitanised, stateless, inclusive and progressivist-emancipatory-social democratic nationalism). In light of these intertwined phenomena, this paper suggests how an ongoing, pervasive, and uneven “metropolitanisation effect” is increasingly shaping city-regional political responses by overlapping metropolitan, city-regional, and national political sca...