Michael Bloomberg, born on February 14, 1942, was mayor of New York City. He was the founder of the partnership of Bloomberg Co., Ltd. and chairman of C40 urban climate leadership organization.

In 1966, Bloomberg received a master's degree in Business Administration from Harvard University; in 1972, he became a shareholder of Salomon Brothers, and was interviewed by various authoritative American newspapers including the New York Times and the Wall Street Journal; in 2001, he ran for mayor of New York City for the first time as a Republican and was successful; in 2005, he was re elected successfully. Bloomberg is the manager of New York, the "capital of the world", with personal wealth of more than 20 billion US dollars. He controls the flow of the most important financial information in the world and is one of the most powerful people in the world. In October 2016, Michael Bloomberg was ranked sixth on Forbes magazine's 2016 list of the 400 richest people in the United States. In June 2018, the formation of the 2020 presidential campaign team began. On November 24, 2019, Michael Bloomberg officially announced his participation in the Democratic presidential campaign to compete for the 2020 US presidential election.

On March 4, 2020, Michael Bloomberg announced his withdrawal from the presidential election and supported the former US Vice President Biden.