I can't speak for others, but Rudy's problem isn't that he had 3 wives, although that certainly isn't a plus for him. It's that he is wrong on a host of issues.
However, Gingrich is no paragon of virtue. His resignation from the house was self-serving, as were his actions which lead to his being hit with ethical charges which, while overblown, weren't meaningless.
Gingrich is an ambitious man, who I think let power get to him. He was in many ways like Clinton, abusing power and authority. He didn't lie under oath, but he wasn't a "good man" with the power he was given.
I would vote for him in a general election, but he isn't my choice for a nominee, and I hope he doesn't enter the race because I can see him splitting the conservative vote and leading to a Rudy nomination.
My opinion is that Gingrich is trying to prop up Guiliani in the hopes that he can enter the race in the fall as the "conservative savior" to slay the Rudy beast.
I keep reading this as some kind of a bizarre excuse for Newt's behavior.
My marriage vows included an oath to forsake all others.
Newt is guilty of lying under oath as well.