By your definition, Rudy should be shunned even more. No one ever goes from Mayor directly to the presidency. This cult of Rudy is enough to make me gag. Not only is a mayor unqualified to be CIC, but for the sake of argument, if he is, then we'd want to look closely at the policies he thrusted upon NY. Some good, some more than abysmal. Sorry.
Well, historically the chances of a NY mayor having a shot at the presidency were actually quite good. In the 19th century there were several, and a couple in the 20th century got close. But as I say, I'm hard pressed to EVER find a single congressman who came close to the White House.