Rudy Giuliani From Wikipedia – Rudolph William Louis Giuliani born May 28, 1944) is an American attorney, conspiracy theorist, and politician who served as the 107th Mayor of New York City from 1994 to 2001. A Democrat and then Independent in the 1970s, Giuliani has been a Republican since the 1980s. He served as United States Associate Attorney General from 1981 to 1983 and United States Attorney for the Southern District of New York from 1983 to 1989.