sentences:  He also chaired the proceedings that resulted in Joseph Stalin’s expulsion from the party.Arrested in 1908, he remained in exile in Astrakhan until the Russian Revolution of 1917.He briefly served as a member of the Executive Committee of the Petrograd Soviet, but the Bolshevik October coup forced him to return to his native Georgia, where he was elected to the Constituent Assembly of the Democratic Republic of Georgia in 1919.