History of the Soviet Union (1964–82) Soviet Union "would result in a crushing retaliatory blow". Though Brezhnev's time in office would later be characterized as one of stability, early on, Brezhnev oversaw the replacement of half of the regional leaders and Politburo members. This was a typical move for a Soviet leader trying to strengthen his power base. Examples of Politburo members who lost their membership during the Brezhnev Era are Gennady Voronov, Dmitry Polyansky, Alexander Shelepin, Petro Shelest and Podgorny. Polyansky and Voronov lost their membership in the Politburo because they were considered to be members of the "Kosygin faction." In their place came Andrei
President of the Soviet Union was also the leader of the Gang of Eight which attempted the August coup, and declared himself Acting President of the Soviet Union on 19 August 1991. After three days the coup collapsed and Gorbachev was restored. He held the office up to the country's dissolution. President of the Soviet Union The President of the Soviet Union (, ), officially called President of the USSR () or President of the Union of Soviet Socialist Republics (), was the head of state of the Union of Soviet Socialist Republics from 15 March 1990 to 25 December 1991. Mikhail Gorbachev was the