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.
Eduard Shevardnadze
At the 25th Congress of the Communist Party of the Soviet Union (CPSU) in 1976, Shevardnadze gave a speech in which he called General Secretary Leonid Brezhnev "vozhd" ("leader"), a term previously reserved for Joseph Stalin. His adulation was only surpassed by that of Andrei Kirilenko and Heydar Aliyev. As Yegor Ligachev later said, Shevardnadze never contradicted a General Secretary. During Brezhnev's last days, Shevardnadze publicly endorsed Konstantin Chernenko's candidacy for the General Secretaryship and called him a "great theoretician". However, when it became clear that the secretaryship would not go to Chernenko but to Yuri Andropov, Shevardnadze swiftly revised his position and gave his support for Andropov. Shevardnadze became the first Soviet republican head to offer his gratitude to the newly elected leader; in turn, Andropov quickly signalled his appreciation and his support for some of the reforms pioneered by Shevardnadze. According to Andropov's biographers the anti-corruption drive he launched was inspired by Shervardnadze's Georgian anti-corruption campaign. When Andropov died, Shevardnadze again became an avid supporter of Chernenko's candidacy for the General Secretaryship.