Tripartisme was the mode of government in France from 1944 to 1947, when the country was ruled by a three-party alliance of communists, socialists and Christian democrats, represented by the French Communist Party (PCF), the French Section of the Workers' International (SFIO) and the Popular Republican Movement (MRP), respectively. The official charter of tripartisme was signed on 23 January 1946, following the resignation of Charles de Gaulle, who opposed the draft of the constitution.