Mikhail Gorbachev major campaign to limit alcohol consumption, which Gorbachev—who believed it would improve health and work efficiency—oversaw. His wife keenly supported the measure. As a result, crime rates fell and life expectancy grew slightly between 1986 and 1987. The reform had significant costs to the Soviet economy, resulting in losses of up to $100 billion between 1985 and 1990. Gorbachev later considered the campaign to have been an error. In April 1986 the Chernobyl disaster occurred; in the immediate aftermath, officials fed Gorbachev incorrect information to downplay the incident. As the scale of the disaster became apparent, 336,000 people were evacuated
1996 Mikhail Gorbachev presidential campaign until its dissolution in December 1991. Following the dissolution of the Soviet Union, Boris Yeltsin (whose rise to power Gorbachev had tried to prevent) became the Russian head-of-state. Gorbachev had, reportedly, been contemplating a political return since sometime in the middle of 1993. Gorbachev was still a vigorous and opinionated man. He desired to escape from his political exile and to repair his image. Gorbachev was also motivated, amid chaotic reform efforts by Yeltsin, by a belief that he could implement far superior (and less disastrous) reform than Yeltsin. Gorbachev also had a strong personal animosity towards Yeltsin. All of