Jean-Jacques Servan-Schreiber, often referred to as JJSS (13 February 1924 – 7 November 2006), was a French journalist and politician. He co-founded L'Express in 1953 with Françoise Giroud, and then went on to become president of the Radical Party in 1971. He oversaw its transition to the center-right, the party being thereafter known as Parti radical valoisien. He tried to found in 1972 the Reforming Movement with Christian Democrat Jean Lecanuet, with whom he supported Valéry Giscard d'Estaing's conservative candidature to the 1974 presidential election.