This would be an act of unparallelled idiocy.
Huckabee brings the support of the religious right to the table. Agreed.
So, think for a moment. The Dems are going to nominate Obama or, if she can find a way to steal the nomination at this stage, Hillary. Do you think that the voters of the evangelical right are going into the polling booth contemplating marking a ballot for either of those?
Their vote is already with the GOP. And since Huckabee can guarantee the support of two percent of three fifths of the square root of sweet bugger all else, there is no point to adding him to the ticket.
And when you further consider that he has some tendencies to mis-speak, it should bring Dan Quayle like memories to mind.
Not a starter.