Is the Eu exceptional? The EU and the US in comparative perspective / Sergio Fabbrini -- European federalism: past resilience, present problems / Mark Gilbert -- constitutionalization of the EU: steps toward a supranational polity / Alec Stone Sweet -- emergence of the EU supranational polity and its implications for democracy / James A. Caporaso -- Nation and federalism in the American historical experience: a model for Europe? / Edoardo Tortarolo -- Territory, electorates and markets in the US: the construction of democratic federalism and its implications for the EU / Alberta M. Sbragia -- citizens in American federalism: locating accountability in a dispersed system / Bruce E. Cain -- Building a market without a state: the EU in an American perspective / Sergio Fabbrini -- European polity-building: searching for legitimacy between economic and social Europe / Vincent Della Sala -- Is social capitalism exportable? Considerations from the EU enlargement / Donald Sassoon -- Post-national democracy as post-national democratization / Alberta M. Sbragia -- EU and the challenge of a post-national constitution / Yves Mény -- Is international democracy possible? A critical view / Robert A. Dahl.