In 1951, after his retirement from the army, Kœnig was elected as Gaullist representative to the French National Assembly and briefly served as Minister of Defense under Pierre Mendès-France (1954) and Edgar Faure (1955).
År 1951, efter sin avgång, valdes han som gaullistisk representant till den franska nationalförsamlingen och fungerade en kort tid som försvarsminister under Pierre Mendès-France (1954) och Edgar Faure (1955).