“…Against this backdrop, the Special Issue conceptualises bottom-up politicisation; theorises the mechanisms underlying EU-level responses (Schimmelfennig, 2020); and analyses the types of responses chosen. The contributions look at supranational actors, like the Court of Justice of the European Union (CJEU), the European Central Bank (ECB) and the European Commission (Blauberger & Martinsen, 2020;Moschella, Pinto, & Martocchia Diodati, 2020;Reh, Bressanelli, & Koop, 2020) as well as intergovernmental ones, like the Council of the EU (Hobolt & Wratil, 2020). Also, they zoom in on different decision-arenas, including law-making and inter-institutional relations (Bunea, 2020;Franchino & Mariotto, 2020), and explore a variety of governance challenges, including transparency and the rule of law (Hobolt & Wratil, 2020;Kelemen, 2020).…”