Lafont travelled to Petrograd in July 1920, seeking to participate in the second congress of the Communist International.Wohl, Robert. French Communism in the Making, 1914-1924. Stanford, Calif: Stanford University Press, 1966. p. 180 However, he was expelled from Russia on Trotsky's orders.Wohl, Robert. French Communism in the Making, 1914-1924. Stanford, Calif: Stanford University Press, 1966. p. 184 Lafont had been accused of contacts with the Polish Socialist Party.Friends of Soviet Russia, and Russian Soviet Government Bureau. Soviet Russia Pictorial. Chicago, etc: Friends of Soviet Russia, etc.], 1921. p. 362 Lafont did however become a member of the French Communist Party in the same year. He was expelled from the party in 1923, due to his links to the League for Human Rights.Irvine, William D. Between Justice and Politics: The Ligue Des Droits De L'homme, 1898-1945. Stanford, Calif: Stanford University Press, 2007. p. 77
