"When he came to power in 1985, Gorbachev had promoted a tall, energetic but reckless new leader named Boris Yeltsin to Moscow party chief and Politburo member. Almost the same age as Gorbachev, Yeltsin was the son of a builder who had been repressed by Stalin. Growing up in Sverdlovsk, he rose to local party secretary by 1976. Yeltsin was the opposite of Gorbachev: while the latter was contemplative, legalistic, sometimes verbose, often witty, and brave, Yeltsin was bombastic, emotional, courageous – and an alcoholic. The two soon clashed, and Gorbachev sacked Yeltsin in 1987, giving him a public dressing-down. But, both opportunistic and idealistic, Yeltsin was ahead of Gorbachev in realizing that the Soviet Union and communism itself would and should soon fall. Yeltsin embraced liberal democracy – yet it also suited him. He was elected president of the Russian Republic in 1989, giving him potential legitimacy unavailable to Gorbachev. In July 1990, he dramatically resigned from the Communist Party."
January 1, 1970
https://en.wikiquote.org/wiki/Boris_Yeltsin