File photo of New York City Mayor Bloomberg with former mayor Giuliani in New York

 
File photo of New York City Mayor Bloomberg with former mayor Giuliani in New York
Republican New York City Mayor Michael Bloomberg raises arms with former New York City mayors Rudy Giuliani (L) as they attend a Bloomberg breakfast campaign event in New York City, in this October 28, 2005 file photo. Had it not been for the Sept. 11, 2001 attacks, neither Rudy Giuliani nor Michael Bloomberg would have such high profiles on the American political stage. If Giuliani is always remembered as the 9/11 mayor of New York City for his leadership in the days of fear that followed, then Bloomberg will be recalled as the mayor who cajoled New Yorkers to focus on the future after the worst tragedy in their history. REUTERS/Mike Segar (UNITED STATES - Tags: POLITICS PROFILE)