When the war was over, following de Gaulle's entourage's advice and the approbation of the archbishop of Paris, Abbé Pierre was elected deputy for Meurthe-et-Moselle department in both National Constituent Assemblies in 1945–1946 as an independent close to the Popular Republican Movement (MRP), mainly consisting of Christian democratic members of the Resistance. In 1946, he was re-elected as a member of the National Assembly, but this time as a member of the MRP. Abbé Pierre became vice-president of the World Federalist Movement in 1947, a universal federalist movement.