Secretariat of the Communist Party of the Soviet Union the CPSU, who was also a Politburo member, was the leader of the Secretariat and of the Party. Dual membership in the Secretariat and the Politburo was in practice reserved for two or three very senior members of the Soviet leadership, and in the post-Stalin era (after March 1953) was a stepping-stone to ultimate power. The last five Soviet leaders (Nikita Khrushchev, Leonid Brezhnev, Yuri Andropov, Konstantin Chernenko and Mikhail Gorbachev) were all senior Secretaries before becoming First or General Secretaries. Additionally, Georgy Malenkov was briefly reckoned as the leader of the Party for a week after Stalin's death by
General Secretary of the Communist Party of the Soviet Union General Secretary of the Communist Party of the Soviet Union General Secretary of the Central Committee of the Communist Party of the Soviet Union was an office of the Communist Party of the Soviet Union (CPSU) that by the late 1920s had evolved into the most powerful of the Central Committee's various secretaries. With a few exceptions, from 1929 until the union's dissolution the holder of the office was the "de facto" leader of the Soviet Union, because the post controlled both the CPSU and the Soviet government. Joseph Stalin elevated the office to overall command of the Communist Party