Alexander Kerensky
The Second Congress of Soviets consisted of 670 elected delegates: 300 were Bolshevik and nearly 100 were Left Socialist-Revolutionaries, who also supported the overthrow of the Alexander Kerensky government. When the fall of the Winter Palace was announced, the Congress adopted a decree transferring power to the Soviets of Workers', Soldiers' and Peasants' Deputies, thus ratifying the Revolution.