The Conclusion addresses the parties’ present condition in the European political systems. Indeed, at the dawn of the new century parties have become Leviathan with clay feet: powerful in the political arena thanks to control of state resources, but very weak in terms of legitimacy in the eyes of public opinion. Only by abandoning the citadelle in which they are entrenched, recasting societal linkages, relinquishing all their privileges, and dismissing their self-referential attitude might they recover the confidence of the electorate. Maintaining a state-centred status will only lead to a dead end, and this will also harm the democratic system itself. The collapse of parties’ legitimacy inevitably affects democratic institutions: the mounting populist and plebiscitary wave suggests how pervasive is the crisis and how dramatic the challenge.