Constitutional reform in the European Union suffers from a post-functionalist dilemma: the options that are politically viable are not democratically legitimate and the options that are democratically legitimate are not politically viable. Against the background of the recent Conference on the Future of Europe and the involvement of transnational European Citizens’ Panels, this article asks whether there is any prospect of overcoming this dilemma and organizing fundamental reform of EU institutions that is both normatively legitimate and politically viable. For this, it examines four models of EU treaty reform and the way these have figured in actual EU reform processes: Intergovernmental Conference, European Convention, informal intergovernmentalism and a Citizens Convention. The article concludes that, as long as the European Union is best characterized as a ‘demoi-cracy’ in which political deliberation takes place primarily in national public spheres, the Intergovernmental Conference remains its main and inevitable forum for constitutional reform. Hence, alternative models of EU constitutional reform should be evaluated not so much on the basis of their potential to substitute the IGC but rather on their ability to catalyse the process and to pre-commit the member state governments.
