The Socialist Revolutionary Party
By 1917, the Socialist Revolutionary Party was one of the most popular parties in Russia – it had everything a political movement needed to gain popularity in Russia around the time of the Revolution.
The party’s ground support came mainly from peasants, i.e. the majority of the Russian population. Socialist Revolutionaries outlined a solution for the agrarian issue through socialist reforms, and had stuck to a radical terrorist course of action for a number of years prior to the Revolution, earning support among the radical Russians.
After the February Revolution, the Socialist Revolutionaries, including Alexander Kerensky, became part of the Provisional Government. But the revolutionary turmoil polarized the party, which split at the congress in May, with left Social Revolutionaries later forming an independent one.