Michael Rubens Bloomberg (born February 14, 1942) is an American politician, businessman, and author. Bloomberg was the mayor of New York City from 2002 to 2013 and is currently a candidate in the Democratic Party primaries for the 2020 United States presidential election.
Bloomberg grew up in Medford, Massachusetts and attended Johns Hopkins University and Harvard Business School. He began his career at the securities brokerage Salomon Brothers, before forming his own company in 1981, Bloomberg L.P., a global financial services, software and mass media company that bears his name, and is known for its Bloomberg Terminal, a computer software system providing financial data widely used in the global financial services industry. He spent the next twenty years as its chairman and CEO. As of November 2019, this made him the 9th richest person in the United States and the 14th richest person in the world; his net worth was estimated at $58 billion. Since signing The Giving Pledge whereby billionaires pledge to give away at least half of their wealth, Bloomberg has given away $8.2 billion. He has given more than $3.3 billion to Johns Hopkins University, including his $1.8 billion gift in 2018 for student financial aid which was the largest private donation in modern times to higher education.Bloomberg served as the 108th mayor of New York City, holding office for three consecutive terms, two terms as a Republican and one as an Independent beginning his first in 2002. A lifelong Democrat before seeking elective office, Bloomberg switched his party registration in 2001 to run for mayor as a Republican. He defeated opponent Mark J. Green in a close election held just weeks after the September 11 terrorist attacks. He won a second term in 2005 and left the Republican Party two years later. Bloomberg campaigned to change the city's term limits law and was elected to his third term in 2009 as an independent on the Republican ballot line. His final term as mayor ended on December 31, 2013. Bloomberg also served as chair of the board of trustees at his alma mater, Johns Hopkins University, from 1996 to 2002. After a brief stint as a full-time philanthropist, Bloomberg re-assumed the position of CEO at Bloomberg L.P. by the end of 2014.
Bloomberg officially launched his campaign for the Democratic Party's nomination in the 2020 presidential election on November 24, 2019, following weeks of speculation that he would join the race as a late entry.
He is also known as Michael Rubens Bloomberg, Michael R. Bloomberg, Bloomberg, Michael, Bloomberg, Mike and Mike Bloomberg.