the October Revolution, but elsewhere the majority in the party organizations remained with the PSR. Notably in some of the locations leftist and rights SR lists were separately presented (Baltic Fleet, Petrograd, Kazan), the leftists prevailed over the rightists, leading D'Agostino (2011) to argue that had separate right/left SRs lists been presented nationwide the peasantry could have opted for the left (considering that there were no major difference between the factions on their agrarian programmes). A key Bolshevik argument against the legitimacy of the Constituent Assembly once it was elected was the fact that the lists had been finalized before the Left SRs constituted themselves as a separate party, and that if the Left SRs had stood separately the Bolshevik and Left SR would have won the majority vote. This was despite the Left SR's eventual opposition to the closure of the Constituent Assembly by the Bolsheviks. Per Serge's account, 40 of 339 elected SR deputies were leftists and 50 belong to Chernov's centrist faction. Smith points out that though the association with Soviet power strengthened the PLSR popularity in the countryside, the schism did not transform the PLSR overnight into a large and well-organized political party, and during the following months of 1918 the PSR managed to regain control over some of the soviets and local branches it lost to the left. Bolsheviks In 1917 the Central Committee of the Russian Social-Democratic Labour Party (Bolsheviks) had begun to allow mass membership, without consulting with Lenin. On July 1, 1917 the Central Committee sent out an instruction to local party organizations to build a broad democratic unity ahead of the elections, to reach out to Menshevik-Internationalists, left-wing SRs and trade unions. In the wake of the abortive July uprising (organized by the revolutionary Petrograd Bolshevik Committee and the Military Organization), the moderates of the Central Committee again appealed to build a left socialist bloc and invited the Menshevik-Internationalists to attend the upcoming party congress as observers. With the election finally approaching, Lenin took a tough stance towards the Central Committee. He deplored the absence of proletarians from the list of proposed candidates that the Central Committee had adopted, charging the Committee with opening the doors for opportunists. In Lenin's view, only workers would be able to create alliances with the peasantry. Lenin also criticised the list for including many recent arrivals to the party who had not yet been tested