General Secretary of the Communist Party of the Soviet Union
In the 1950s, Stalin increasingly withdrew from Secretariat business, leaving the supervision of the body to Georgy Malenkov, possibly to test him as a potential successor. In October 1952, at the 19th Party Congress, Stalin restructured the party's leadership. His request, voiced through Malenkov, to be relieved of his duties in the party secretariat due to his age, was rejected by the party congress, as delegates were unsure about Stalin's intentions. In the end, the congress formally abolished Stalin's office of General Secretary, though Stalin remained one of the party secretaries and maintained ultimate control of the Party. When Stalin died on 5 March 1953, Malenkov was the most important member of the Secretariat, which also included Nikita Khrushchev, among others. Under a short-lived troika of Malenkov, Beria, and Molotov, Malenkov became Chairman of the Council of Ministers but was forced to resign from the Secretariat nine days later on 14 March, leaving Khrushchev in effective control of the body. Khrushchev was elected to the new office of First Secretary at the Central Committee plenum on 14 September of the same year. Originally conceived as a collective leadership, Khrushchev removed his rivals from power in both 1955 and (especially) 1957 and reinforced the supremacy of the First Secretary.
Central Committee of the Communist Party of the Soviet Union
When Stalin died on 5 March 1953, Georgy Malenkov, a Deputy Chairman of the Council of Ministers succeeded him as Chairman and as the "de facto" leading figure of the Presidium (the renamed Politburo). A power struggle between Malenkov and Khrushchev began, and on 14 March Malenkov was forced to resign from the Secretariat. The official explanation for his resignation was "to grant the request of Chairman of the USSR Council of Ministers G. M. Malenkov to be released from the duties of the Party Central Committee". Malenkov's resignation made Khrushchev the senior member within the Secretariat, and made him powerful enough to set the agenda of the Presidium meetings alongside Malenkov. Khrushchev was able to consolidate his powers within the party machine after Malenkov's resignation, but Malenkov remained the "de facto" leading figure of the Party. Together with Malenkov's and Khrushchev's accession of power, another figure, Lavrentiy Beria was also contending for power. The three formed a short-lived Troika, which lasted until Khrushchev and Malenkov betrayed Beria. Beria, an ethnic Georgian, was the Presidium member for internal security affairs, and he was a strong supporter for minority rights and even supported reuniting East and West Germany to establish a strong, and neutral Germany between the capitalist and socialist nations. It was Beria, through an official pronouncement by the Ministry of Internal Affairs (MVD) and not by the Central Committee or the Council of Ministers, who renounced the Doctor's Plot as a fraud.