May 30, 2013 — Law enforcement officials say the letter is similar to two that were sent to New York City Mayor Michael Bloomberg. Preliminary tests of the letter to Bloomberg turned up traces of ricin.
May 29, 2013 — Police say two anonymous letters were received — one in New York City and another at the Washington, D.C., headquarters of Bloomberg's nonprofit.
Nov 23, 2012 — Think superPACs were a waste of wealthy donors' money this election season? Consider how New York City Mayor Michael Bloomberg's superPAC was able to help engineer an upset in one congressional race outside Los Angeles.
Mar 22, 2012 — New York Mayor, media magnate and public health zealot Michael Bloomberg said he will give $220 million to fight smoking in the developing world. Microsoft co-founder Paul Allen is giving $300 million for brain research.
Sep 15, 2010 — Meg Whitman, Republican California governor candidate, former ebay CEO and a billionaire , set a new personal spending record, $119 million, beating New York City Mayor Michael Bloomberg by $10 million.