List of leaders of the Soviet Union
Following Joseph Stalin's consolidation of power in the 1920s, the post of the General Secretary of the Central Committee of the Communist Party became synonymous with leader of the Soviet Union, because the post controlled both the Communist Party and the Soviet Government, both indirectly, via Party membership, and via the tradition of a single person holding two highest posts: in the Party and in the government. The post of the General Secretary was abolished in 1952 under Stalin and later re-established by Nikita Khrushchev under the name of First Secretary. In 1966, Leonid Brezhnev reverted the office title to its former name. Being the head of the Communist Party of the Soviet Union (CPSU), the office of the General Secretary was the highest in the Soviet Union until 1990. The post of General Secretary lacked clear guidelines of succession, so after the death or removal of a Soviet leader the successor usually needed the support of the Politburo, the Central Committee, or another government or party apparatus to both take and stay in power. The President of the Soviet Union, an office created in March 1990, replaced the General Secretary as the highest Soviet political office.
Nikolay Kruchina
Kruchina joined the party in 1949. In 1962 he became an instructor for the Agricultural Department of the CPSU. In 1963-1965 he was a secretary of the Tselinny Krai Committee of the Communist Party in the Kazakh SSR, in 1965-1978—the First Secretary of the Tselinograd Oblast Committee of the Communist Party in the Kazakh SSR. In 1973 he was awarded Hero of Socialist Labor. In 1971 Kruchina entered the Central Auditing Committee of the CPSU. In 1971 he became a candidate member and in 1976 a full member of the CPSU Central Committee. In 1978-1983 served as a first deputy chairman of the Agricultural Department of the CPSU then headed by Mikhail Gorbachev, became its Chairman after Gorbachev in 1983 and in the same year, after Yury Andropov's assumption of power, finally replaced Georgy Pavlov as the party's administrator of affairs ("upravlyayushchiy delami"). It is known that Kruchina's office transferred millions of dollars as a Soviet help to foreign Communist Parties. For the last time Kruchina visited his office on August 19, the day the abortive Soviet coup attempt of 1991 started. In 1966-1989 he was also a Deputy in the Supreme Council of the Soviet Union and in 1989-1991 People's Deputy of the Soviet Union.