The office was created as a replacement for the Central Executive Committee of the All-Russian Congress of Soviets.
However, they became important in early 1990 when a newly elected Russian Congress of People's Deputies was split between Communist loyalists and their opponents.
Soon thereafter, he resigned from the Communist Party and started building an independent power base within the Russian SFSR, which proved to be an important step on the way to the Soviet collapse in late 1991.
Instead the Chairman of the Supreme Soviet became head of the republic in addition to serving as a parliamentary speaker.
Boris Yeltsin won the first presidential election in June 1991 and, upon inauguration, resigned from the office of the Supreme Soviet Chairman.