"Mainstream legal scholarship on the European Community (EC) and the European Union (EU) has long been dominated by meta-narratives and grand theories to explain European legal integration as a necessary, if not self-evident, process toward ever greater integration. The directional pull of these functional narratives, whether termed as Europeanization, federalization, or constitutionalization, is one towards an ever-closer Union, thereby replicating the original teleology of the Rome Treaty (1957). Although there are theoretical differences among these explanations, notably between intergovernmental and neo-functionalist narratives, most scholars agree that one particular institutional actor has played an outsized role: the European Court of Justice (ECJ), now the Court of Justice of the EU (CJEU) since the Lisbon Treaty (2009) that includes the Court of Justice, the General Court. For the same reasons, the CJEU has become a coveted object of inquiry for studies of European integration and governance. We have for years learned about its role in constitutionalizing Europe, establishing the supremacy of European law, creating a system of supranational governance, and the new types of litigation and mobilization spurred by the ECJ"--