On the 16th of June the Court of Justice delivered its decision in the Gauweiler case, concerning the legality of the Outright Monetary Transactions (OMT) programme of the European Central Bank (ECB). The Court considered the programme compatible with EU law. The decision has important implications for the powers of the ECB, the constitutional framework of the EU’s Economic and Monetary Union, and for the relationship between the Court of Justice of the EU and the referring court, the German Federal Constitutional Court. This was the first time that the German court asked for a preliminary ruling, and it remains to be seen whether the reply given by the Court of Justice will be to the national court’s liking.