Bloomberg at the Tribeca Film Festival

Michael Rubens Bloomberg (born February 14, 1942) is the current Mayor of New York City. He was listed as the eighth-richest American, with a net worth of US $16 billion, in the Forbes 400 on Sept. 17, 2008, making him the richest resident of New York City, ahead of David H. Koch. He is the founder and 88% owner of Bloomberg L.P., a financial software services company.

A lifelong Democrat before seeking elective office, Bloomberg switched his registration in 2001 and ran for mayor as a Republican, winning the election that year and a second term in 2005. He was frequently mentioned as a possible independent candidate for the 2008 presidential election and fueled that speculation when he left the Republican Party in June 2007 to become an independent. There was also speculation that he would run as a vice-presidential candidate. Bloomberg did not, however, seek the presidency nor was he selected as a running mate by any of the presidential candidates.