In 2012 and 2013, we observed how the European Stability Mechanism (ESM) was adjudicated by “EU courts, plural”: a number of high courts of the Member States (among them “Kelsenian” constitutional courts as well as representatives of a more hybrid model of judicial review of constitutionality) and the European Court of Justice (CJEU) were seized by challenges to the mechanism. What attracted attention was the fact that only one court, the Supreme Court of Ireland, decided to submit a preliminary reference to the CJEU, while the other courts, as would appear from their judgments, did not even consider the option. This was a suboptimal example of judicial dialogue in the case of ESM adjudication.