The article examines the history of the formation of representative power in Russia: the emergence and development of Soviets of workers’, peasants’ and soldiers’ deputies and the highest representative institution - the State Duma. The following shows the activities of the State Duma, the range of interests of their deputies, their attention to the problem of whether the Duma is a parliament or not. The process of formation of Soviets since February 1917 as an All-Russian representative authority is shown. The problem of correlation between the theory of Marxism and the practice of its application in the RSFSR is considered. It is shown that the Constitution of the RSFSR of 1918 never mentioned the classical formula of Marxism “dictatorship of the proletariat”, blurring it with the dictatorship of workers. However, during the Civil War, in order to retain power, there is a transition to the de facto dictatorship of the Bolshevik Party. The article draws attention to the moral and political level of the members of the CPSU (b), I. V. Stalin’s personnel policy in both party and Soviet organizations. The institute of purges of party and Soviet workers is considered as a way to get rid of both political opponents and embezzlers, thieves, drunkards, etc. of the public. The new Constitution of the USSR of 1936 was to ful ll the task of nally purging the state from the party dictatorship and ensuring the union of party members and non - party members