One of the main thinkers of the French far-right, he had participated in Marcel Déat's fascist party Rassemblement National Populaire (RNP) under the Vichy regime.
Roland Gaucher entered politics as a far-left activist, first as a member of the Trotskyist group Fédération des étudiants révolutionnaires (Federation of Revolutionary Students) and then of the Jeunesses socialistes ouvrières (Workers' Socialist Youth), where he met with Robert Hersant and Alexandre Hébert, who would become one of the leaders of the social-democrat trade-union Force Ouvrière (FO).
[1] However, Gaucher shifted to the far right during World War II, joining Marcel Déat's Rassemblement National Populaire (RNP) Fascist party in March 1942.
[2] At the end of 1944, according to Marcel Déat's diary, he fled with Marshal Philippe Pétain's men to the Sigmaringen enclave in Germany.
[3] But Gaucher then participated in the split in 1974 leading to the creation of the Parti des forces nouvelles (PFN), gathering radical activists who considered Jean-Marie Le Pen to be too "moderate."
[3] He also collaborated articles to the Unité Radicale 's website in 2001–2002, a party close to the Third Position's ideas, and took part to one of its meetings on 22 September 2001.
[3] Gaucher, who had once declared in one of his books being a member of the National Populist tendency of the FN, maintained links as much with the Lefebvrist Catholics as he did with the "Nationalist Revolutionaries".