Michael Rubens "Mike" Bloomberg is an American businessman, author, politician, and philanthropist.
Watch Michael Bloomberg's full speech at the 2016 Democratic National Convention by PBS NewsHour
His net worth is estimated at US$49.1 billion, as of May 2017, ranking him as the 8th richest person in the United States and the 10th richest person in the world.
The United States dollar is the official currency of the United States and its insular territories.
Mike Bloomberg: The Harder You Work the Luckier You Get by Bloomberg
He has joined The Giving Pledge, whereby billionaires pledge to give away at least half of their wealth.
The Giving Pledge is a campaign to encourage the wealthy people of the world to contribute their wealth to philanthropic causes.
Bloomberg is the founder, CEO, and owner of Bloomberg L.P., a global financial services, mass media, and software company that bears his name, and is notable for its Bloomberg Terminal, a computer software system providing financial data widely used in the global financial services industry.
The Bloomberg Terminal is a computer software system provided by the financial data vendor Bloomberg L.P. that enables professionals in the financial service sector and other industries to access the Bloomberg Professional service through which users can monitor and analyze real-time financial market data and place trades on the electronic trading platform.
Bloomberg L.P. is a privately held financial software, data, and media company headquartered in Midtown Manhattan, New York City.
He began his career at the securities brokerage Salomon Brothers, before forming his own company in 1981 and spending the next twenty years as its chairman and CEO. Bloomberg also served as chairman of the board of trustees at his alma mater, Johns Hopkins University, from 1996 to 2002.
The Johns Hopkins University is an American private research university in Baltimore, Maryland.
Salomon Brothers was a Wall Street investment bank, known as a bulge bracket company.
Bloomberg served as the 108th Mayor of New York City, holding office for three consecutive terms, beginning with his first election in 2001.
The Mayor of the City of New York is head of the executive branch of New York City's government.
A Democrat before seeking elective office, Bloomberg switched his party registration in 2001 to run for Mayor as a Republican.
He defeated opponent Mark Green in a close election held just weeks after the September 11 terrorist attacks.
The September 11 attacks were a series of four coordinated terrorist attacks by the Islamic terrorist group al-Qaeda on the United States on the morning of Tuesday, September 11, 2001.
Bloomberg campaigned to change the city's term limits law, and was elected to his third term in 2009 as an Independent candidate on the Republican ballot line.
Bloomberg was frequently mentioned as a possible candidate for the U.S. Presidential elections in 2008, and 2012, as well as for Governor of New York in 2010.
He declined to seek either office, opting to continue serving as the Mayor of New York City.
On January 1, 2014, Bill de Blasio succeeded Bloomberg as the Mayor of New York City.
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.
On March 7, 2016, Bloomberg announced that he would not run as a third party candidate in the 2016 U.S. presidential election despite widespread speculation that he would, and later endorsed Democratic nominee Hillary Clinton for president.
Hillary Diane Rodham Clinton is an American politician and the nominee of the Democratic Party for President of the United States in the 2016 election.