So who is left as a potential presidential candidate for 2012?

Ensign - Had an affair, may have used position to help his affair's husband keep a job and to pay affair's son.
Sanford - Not only had an affair but abandoned post and lied to staff
Jindal - Had an opportunity to show how well thought and intelligent he is and blew it.
Palin - Appeals strongly to the base, but it's arguable that she could ever win anything but a primary election
Romney - Does not particularly appeal to the base, but has kept out of the headlines at least. Would Romney even get past the primaries, however?
Gingrich - Saddled with a great deal of baggage, most of his own making. May have some good relatively fresh ideas, but can't seem to keep his foot out of his mouth.

So... seriously.. am I missing anyone?

Oh, I know! Huckabee!
Huckabee will be the 2012 Republican Presidential Nominee!