“Populism” appears everywhere: a frequently proffered assessment—or perhaps diagnosis—of constitutional systems around the world. Both its supporters and opponents emphasise its newness. But its phisiognomy, causes, and impact on legal orders and institutions are a matter of deep controversy. In a few words, its contours and core components adapt to different constitutional settings. Populist forces back a variety of agendas, which often overlap in a more rhetorically than concrete way.

The authors of this issue divide themselves among opponents to populism and moderately optimistic observers. In this respect, populism has probably become a catalyst both for its supporters and detractors. Populism identifies through ideas that rally increasing number of discontents. But also opponents identify as populists the perceived threats to liberal democracy as they understand them.

Defining populism has not simply proven to be a Sysyphean task; it has also showed that it is all but easy to pin down what a liberal democracy is made of. Contemporary debates about the fate of democracy need to abandon metaphysics for a more realistic, down-to-earth approach that is sensitive of the specificities of each constitutional setting.

This Article explores whether and how contemporary constitutionalism may have triggered or facilitated populism and its illiberal agenda. In particular, it focuses on some of the legal doctrines that have characterized the growth of transnational and supranational judicial fora, contrasting them with populism in Europe. The Article first sketches the role of courts in shaping contemporary transnationalism and supranationalism in Europe. Then, it analyzes the role that the ideals of progress and equality have played in the judicialization of pan-European legal culture. Finally, it ponders the consequences of the constitutionalization process of European law for the role of democratically accountable institutions.

The concept of dignity has made its way into contemporary discourse on rights after having taken a winding road which intersected secular thinking with religious thinking. Its pervasive utilisation by courts shows its richness as well as its amorphousness. An enquiry into comparative law suggests that the concept of dignity, especially when it is associated with the idea of equality, creates tensions with claims to religious freedom. Such clashes cannot be reconciled on theoretical grounds, but only on practical ones, depending on context and according to proportionality scrutiny.