 He was a founding member of Les Enragés (literally "the Angry Ones") who opposed Jacobian leniency.In 1793, he married Pauline Léon, who together with Claire Lacombe had founded the "Société des Républicaines Révolutionnaires" a radical & revolutionary feminist organization which was banned the following year.He and his wife published a broadsheet called "L'Ami du peuple par Leclerc" starting in 1793, which advocated a radical purging of the army, the creation of a revolutionary army made up exclusively of the partisans of the Reign of Terror, and the execution of all the suspected anti-revolutionaries.