1906-1908 member, Ural Oblast Party Committee. 1911 member, Moscow Russian Social-Democratic Workers’ Party Committee. Early 1913 secretary.
Russian Bureau, Central Committee, Russian Social-Democratic Workers’ Party. Secretary, Bolshevik Faction, 4th State Duma. After 1917 October Revol Presidium member, Kiev Province Executive Committee.
Member Ukraine Central Executive Committee. 1922-1923 worked for Agitation and Propaganda Department, Party Central Committee.
Communist Party member from 1905.