Rudy Giuliani polling among Republicans. Senator John McCain, who ranked a close second behind the New York Mayor, had faded, and most polls showed Giuliani to have more support than any of the other declared Republican candidates, with only former Senator Fred Thompson and former Governor Mitt Romney showing greater support in some per-state Republican polls. On November 7, 2007, Giuliani's campaign received an endorsement from evangelist, Christian Broadcasting Network founder, and past presidential candidate Pat Robertson. This was viewed by political observers as a possibly key development in the race, as it gave credence that evangelicals and other social conservatives could
Rudy Giuliani stated that his duties as mayor prevented him from campaigning more. Clinton was now 8 to 10 points ahead of Giuliani in the polls. Then followed four tumultuous weeks, in which Giuliani's medical life, romantic life, marital life, and political life all collided at once in a most visible fashion. Giuliani discovered that he had prostate cancer and needed treatment; his extramarital relationship with Judith Nathan became public and the subject of a media frenzy; he announced a separation from his wife Donna Hanover; and, after much indecision, on May 19, 2000 he announced his withdrawal from the Senate race.