Euro crisis reforms as major example of interstitial institutional change in the EU - Forms of institutional change : unusual sources of law, new tasks for the EU institutions, new organs, competence creep, institutional hybrids, and more differentiated integration - Question whether some or all of this amounts to a ‘constitutional mutation’ of the EU legal order - Reasons to doubt whether the constitutional fundamentals have changed - Alternative thesis: increased institutional variation, deepening the differences between EMU law and the rest of EU law.

Indivisibility of the French republic – sovereignty and French republicanism – universalism in French political thought – spatial and social dimensions of the indivisibility doctrine – indivisibility and identity-based classifications – Dilution of the indivisibility doctrine – a crisis of French universalism

European Convention on Human Rights and the European Union Charter of Fundamental Rights: relationship – Teleological method of interpretation of the European Court of Justice: meaning, justifications, and criticisms – Originalist method of interpretation: meaning, justifications, and criticisms – Original meaning of Article 52(3) of the Charter: text, drafting history, case law – Conclusion: case law of European Court of Human Rights not strictly binding on the Court of Justice of the European Union.

Misconception of the EU is the reason for increasing scepticism – multilevel constitutionalism: conceptualising the EU as a matter of the citizens – critiques and the defence of multilevel constitutionalism – European treaties as a form of a new supranational social contract – embedded autonomy in a system of divided sovereignty – explaining and enhancing democratic legitimacy of the EU – the legitimising principles of additionality, of voluntariness and of open democracy – taking ownership of the EU and taking subsidiarity seriously – backing the European monetary policy by new competences for a common economic and fiscal policies – engaging in European policies as a way out of the crisis.