Boris Yeltsin came to power with a wave of high expectations not long before the Soviet Union's collapse. In May 1990, he was elected Chairman of the Supreme Soviet (Parliament) of the Russian SFSR - the highest state office and thus became the head of state. As a result of the creation of the post of President of the Soviet Union, the Union republics also began to introduce the post of President. To do this, a referendum was held in the Russian SFSR, in which 71% of voters voted for the creation of the post of President, elected in direct elections. On 12 June 1991 Yeltsin was elected president of the Russian Soviet Federative Socialist Republic with 57% of the vote, becoming the first popularly elected president. But Yeltsin never recovered his popularity after a series of economic and political crises in Russia in the 1990s. The Yeltsin era was marked by widespread corruption, economic collapse, and enormous political and social problems. By the time he left office, Yeltsin had an approval rating of two percent by some estimates.