William Daley is an American lawyer and former banker. He served as White House Chief of Staff to President Barack Obama from January 2011 to January 2012. He also served as U.S. Secretary of Commerce from 1997 to 2000 under President Bill Clinton. His private-sector positions included membership on the Executive Committee of JPMorgan Chase & Co.
Source - http://en.wikipedia.org/wiki/William_M._Daley