Mikhail Gorbachev and following the Chernobyl disaster of 1986 pursued this agenda. Gorbachev's policies of "glasnost" ("openness") and "perestroika" ("restructuring") and his reorientation of Soviet strategic aims contributed to the end of the Cold War. Under this program, the role of the Communist Party in governing the state was removed from the constitution, which inadvertently led to crisis-level political instability with a surge of regional nationalist and anti-communist activism culminating in the dissolution of the Soviet Union. Gorbachev later expressed regret for his failure to save the Soviet state, though he has insisted that his policies were not failures but rather were
Congress of People's Deputies of the Soviet Union Soviet Union. Frustrated by the 'old guard's resistance to his attempts to liberalise, Gorbachev changed tack and embarked upon a set of constitutional changes to try and separate party and state, and thereby isolate his conservative opponents. Detailed proposals for the new Congress of People's Deputies of the Soviet Union were published for public consultation on 2 October 1988, and to enable the creation of the new legislature the Supreme Soviet, during its 29 November to 1 December 1988 session, implemented the amendments to the 1977 Soviet Constitution, enacted a law on electoral reform, and set the date of the