Mikhail Gorbachev
After the August coup in 1991, Gorbachev resigned as leader of the Communist Party and held onto the Soviet presidency. When Union republics began to turn away from the Soviet system, Gorbachev's power was dramatically reduced. By late 1991 he had almost no influence outside of Moscow. When Russia, Ukraine and Belarus became independent, Gorbachev was basically a President of a country that only existed on paper. He resigned on December 25, 1991.