I don;t think so (as far as Romney being VP)
Huckabee is the one that carried the South. Romney carried the Great Plains (which have been “safe” Republican states forever, and will go to whoever gets the Republican nomination). The South is the area that tends to decide elections… Carter, Reagan, Bush 41, Clinton, Bush 43… all came to power by carrying the Old South. That kind of political history is NOT going to be forgotten by campaign managers.
And if Obama gets the Democrat nomination (amazingly enough that is looking more likely than it once did), then the Battle for the South takes on CRITICAL status. The Republicans cannot afford to cede the Southern states to the Democrats in a racial vote. They HAVE to make a strong play for the Old South AS A WHOLE in order to win. That eliminates single state candidates like SC’s junior senator Lindsey Graham from consideration and FORCES McCain to look for a “global” Southern candidate. And that means HUCKABEE… the only PROVEN winner that the Republicans have in the Old South.
Huckabee also puts the Clinton’s home state into play (and we know from 2004 that losing your home state can cost you an election).
Huckabee also brings about 5,000,000 voters nationally with him JUST on the strength of his Fair Tax support, something that NO other Republican VP candidate can do. That alone is a 4% gain in the General Election.
The election is likely to be close. 5,000,000 extra votes from both Dems and Republicans… a 4% gain in the popular vote… that is going to take a HELL of a lot for McCain to ignore and choose someone other than Huckabee.
Truth be told though… probably not enough to get ME to vote for McCain…