Nicholas Brown and Imre Szeman continue their conversation with Michael Hardt and Antonio Negri. (See ‘The Global Coliseum: On Empire’ in Cultural Studies, 16.2, (March 2002), p. 177–192). In this new interview they press the authors of Empire and Multitude on questions that have arisen both out of their own involvement with the theoretical issues generated by Empire and from new areas opened up by Multitude. Why is the multitude not a class? How can the unity of a political project be maintained in the multiplicity of the multitude? Is democracy still a project for the future? Can a political subject constitute itself outside the structure of sovereignty? In other words, what is the multitude?