I doubt the Republicans would support a serious candidate.
They are not putting forward anybody they would support, much less expect to win. Why should they? Obama rolls over better then any of my dogs. And the Democrats will take the rap for supporting a Republican agenda much like Clinton is still being blamed for NAFTA. I don't know what good the big coat-tails will do; BHO has the leadership skills of an autistic cloistered monk. On his record, he couldn't lead a pack of cub scouts to the toilet. I figure there will be 5 more years of the same crap unless interrupted by revolution or dissolution. We're pretty well screwed. I'd love to be wrong...