** FILE ** In his box-filled City Hall office, then-New York City Mayor Rudy Giuliani, center, relaxes for a moment during his final radio show, in this Dec. 28, 2001 file photo in New York. As mayor, Giuliani imposed civility on New York, not on himself. "Get off the phone, you crazy nut," Giuliani barked at a caller on his weekly radio show. In the 1990s, Giuliani clearly relished the opportunity to spar, now as a presidential candidate, he seems to be showing a gentler side. With Multimedia interactive. (AP Photo/Beth A. Keiser, File)