Communist Party of the Soviet Union reinvigorated the party ideology by adding new concepts and updating older ones. A positive consequence of this was the allowance of "pluralism of thought" and a call for the establishment of "socialist pluralism" (literally, socialist democracy). He introduced a policy of "glasnost" (Russian: "openness", "transparency") in 1986, which led to a wave of unintended democratization. According to Russian scholar Archie Brown, the democratization of the Soviet Union brought mixed blessings to Gorbachev; it helped him to weaken his conservative opponents within the party but brought out accumulated grievances which had been oppressed during the previous decades. In reaction to these
President of the Soviet Union 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 only person to occupy the office. Gorbachev was also General Secretary of the Communist Party of the Soviet Union between March 1985 and August 1991. He derived an increasingly greater share of his power from his position as president until he finally resigned as General Secretary