Mikhail Gorbachev
Mikhail Gorbachev (2 March 1931 – 30 August 2022) was a Soviet revisionist politician who acted as General Secretary of the Communist Party of the Soviet Union, Chairman of the Presidium of the Supreme Soviet, and president of the Soviet Union from 1990 to 1991.
Mikhail Gorbachev lacked even a basic understanding of Marxism and ideologically aligned with social democracy. He directly oversaw the dissolution of the Soviet Union, to which he was its last effective head of state.