A ranar 15 ga Maris, 1990, a babban taro na uku na wakilan jama'ar Tarayyar Soviet, an zabi shugaban koli na Tarayyar Soviet Mikhail Sergeevich Gorbachev a matsayin shugaban kasa na farko kuma tilo a tarihin Tarayyar Soviet.
Ya rike wannan mukami kusan shekaru biyu. Manufar kariyar Gorbachev ta haifar da rushewar Tarayyar Soviet a ranar 8 ga Disamba, 1991, kafa CIS da murabus na shugaban Tarayyar Soviet.
Bayan da ya sanar da bukatar gudanar da babban taro a watan Fabrairun 1990, Gorbachev bai da tabbas game da sakamakon kuri'un da jama'a suka kada, don haka ya ki zaben dimokradiyya.
Don haka zaben da ya yi da rinjayen ‘yan majalisa ne ya hana shi tsayawa takara tare da kayyade kawance da ‘yan mazan jiya wadanda ke rike da manyan mukaman gwamnati.
Bayan rattaba hannu kan yarjejeniyar Belovezhskaya da ainihin rashin amincewa da yarjejeniyar, a ranar 25 ga Disamba, 1991, Mikhail Gorbachev ya yi murabus a matsayin shugaban kasa.