Quốc (Ho) became a Representative To The Congress of Tours of The Socialist Party of France

In December 1920, Quốc (Ho) became a representative to the Congress of Tours of the Socialist Party of France, voted for the Third International and was a founding member of the French Communist Party. Taking a position in the Colonial Committee of the party, he tried to draw his comrades' attention towards people in French colonies including Indochina, but his efforts were often unsuccessful.