Rudolph William Louis "Rudy" Giuliani (born May 28, 1944) is a politician from New York in the United States. He is a Republican and campaigned to become President of the United States in 2008. Giuliani was mayor of New York City from January 1, 1994 to December 31, 2001. Giuliani became more well known during and after the September 11, 2001 attacks on the World Trade Center. In 2001, "Time" magazine named him "Person of the Year" and he received an honorary knighthood from Queen Elizabeth II in 2002.