Pierre Rosanvallon is actually one of the most stimulating French thinkers. He is professor of the College of France, his reflection illuminates a deep research space: the democracy as modern political order, the State personalities, the universal vote and the citizen rising as a democracy figure. All these topics share a worry: the interest to undertaking the political and not the politic as a research object. The study of the political is not then a research of the political ideas or their material demonstration. There is a need to undertake the political, would say Rosanvallon, not as an exterior totality, not depending from their actors actions but as a framework in which the representations and their material reality, their products themselves are intersected and juxtaposed. This interview reveals some aspects of the thought of this author and, by the way, offers an idea of the complex view of the French historiography today.