Do supranational institutions and legal norms influence the domestic politics of banning political parties? Studying two cases of party closure, the former Basque nationalists Batasuna and the pro-Kurdish DTP, Selin Türkeş-Kılıç shows that besides the political considerations for party bans, domestic court rulings on such bans sought to reinforce the legitimacy of these bans. Constitutional court justices evoked principles of international and European law, even if they contradict the initial recommendation of EU institutions to refrain from a party ban. To find out more read Selin’s article “Political party closures in European democratic order” published in the Journal of European Public Policy.