 At the time of the liberation (August 1944), he was elected to be a delegate for Seine-et-Marne to two national constituent assemblies and then to the National Assembly of France itself, a position he held for the duration of the French Fourth Republic (1946-1958).He was Minister for Veterans and War Victims in the provisional governments of Félix Gouin and Georges Bidault from 26 January to 8 July 1946.He became an associate member of the central committee of the French Communist Party (PCF) in July 1945 and then an alternate to the National Office in June 1947, and, lastly, a full member in June 1954, at the time of the Thirteenth Congress of the PCF.