 Complete the following phrase:  Once the Bolsheviks emerged victorious in the civil war, Rykov resigned his Supreme Council of National Economy post on 28 May 1921. On 26 May 1921, he was appointed Deputy Chairman of the Council of Labor and Defense of the Russian SFSR under Lenin. With Lenin increasingly sidelined by ill health, Rykov became his deputy at the Sovnarkom Council of Peoples Commissars on 29 December. Rykov joined the ruling Politburo on 3 April 1922, after the 