Rudy is the worst possible candidate for uneasy Americans.
He should bow out ASAP---his visibility as a candidate is like waving a red flag in front of hijackers and other thugs. The dumbest thing Rudy did was enter the 2008 race on his 9/11 credentials. And he knew it, too---he sure played down those fast---especially after the Nov 2006 debacle.
If you wanted to be President of the United States, and you were the front-runner two years out, and obviously you thought your personal life was fine, since after all it's your personal life, why would you ever think to drop out of the race?