He joined the Bolsheviks just before the 1917 October Revolution , eventually became a leader within the Communist Party .
Leon Trotsky -- Trotsky initially supported the Menshevik Internationalists faction of the Russian Social Democratic Labour Party .
Leon Trotsky joined the Bolsheviks just before the 1917 October Revolution , eventually became a leader within the Communist Party .
Leon Trotsky -- Trotsky initially supported the Menshevik Internationalists faction of the Russian Social Democratic Labour Party .