That makes you wonder . . . would Huckabee ever pick Rudy to be his VP?
Probably not...too many skeletons in the closet, plus Rudy probably wouldn't accept (he'd probably prefer making money in the private sector)
Who would Huckabee pick? The ideal candidate would be a solid fiscal conservative with foreign policy credentials who isn't from the South or the Bush Administration. However, it doesn't seem like any of those exist, so here's a possible list:
Mark Sanford: good reputation as a fiscal conservative, though he's also a Southern Governor
Romney: He's not going to appeal to many and has his own problems--only a consideration if Romney & Huck duke it out past Super Tuesday.
Pawlenty: a moderate from Minnesota
Bill Owens: maybe?
All of the above are governors, who are pretty rare choices for VP (that said, Senators aren't too common either, with only Bob Dole & Dan Quayle being VP picks in recent memory).
It's hard to think of a good Senator pick--Dick Lugar would be ideal, if he weren't 75. John McCain, John Warner, & John Danforth would be great picks (especially Danforth), but they're all too old (and Danforth probably would refuse the job).
Kit Bond & Judd Gregg are both solid if uninspiring Senators.
Kay Bailey Hutchison would be an unimpeachable female candidate (might be useful against Hillary), and would be seen as something of a moderate.
As for Representatives...Mike Pence is thought of highly by some, though I've never seen the appeal.
J.C. Watts...would be seen as simply pandering to race, especially if Obama's the nominee.
Huckabee/Hutchinson would be a hilarious ticket. They could have Larry the Cable Guy as their secretary of state and Jim Varney as their Attorney General.
Pawlenty and Owens are good choices. Olympia Snowe would certainly decline. Susan Collins would be about as good as the Northeast could offer at this point, but she's facing a tough re-election fight, and wouldn't want to hand another seat to the Dems.
George Voinovich? I don't know how old he is.
Chuck Hagel? That would help improve the ticket for moderates and independents.
Oh my god! What about Rick Santorum?
See its hard to think of any Republican moderates to balance Huckabee with, because everyone under 60 in the GOP is a right wing Evangelical (or so it seems). Lugar, John Warner, Specter, etc. All the good ones are getting on in years.
