Jean-François Kahn est un journaliste et essayiste.
Il a été le créateur et directeur de l'hebdomadaire Marianne.
Il a apporté son soutien à François Bayrou pour la présidentielle de 2007 et 2012.
Il est l'auteur de La catastrophe du 6 mai 2012.
Jean Garrigues est historien, spécialiste d'histoire politique.
Il est professeur d'histoire contemporaine à l' Université d'Orléans et à Sciences Po Paris.
Il est membre du jury du prix de thèse de l'Assemblée Nationale, du prix du Livre d'histoire du Sénat et du prix Jean Zay, du conseil scientifique des Rendez-Vous de l'Histoire et du Comité d'histoire de la Ville de Paris, ainsi que du conseil d'administration de la Société d'histoire de 1848.
Ses recherches portent sur la vie politique en France du milieu du XIXe siècle à nos jours, les relations entre pouvoir économique et pouvoir politique, les centres, les libéraux, la vie parlementaire, les contre-pouvoirs et les groupes de pression.
Il est l'auteur de plusieurs ouvrages comme Histoire du Parlement de 1789 à nos jours (Armand Colin, 2007), La France de la Ve République 1958-2008 (Armand Colin, 2008) et Les hommes providentiels : histoire d’une fascination française (Seuil, 2012). Son dernier livre, Le monde selon Clemenceau est paru en 2014 aux éditions Tallandier.
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