a potential Romney implosion, and somehow he'll be called on to step in and save things at the last minute. I wouldn't put it past his ego.

Or maybe he smells Romney blood in the water, and sees this as his chance to extract some revenge by inflicting a few bites himself.

Newt smelled it several miles away and came running. He would have gotten there quicker but he had to push past Sarah Palin running through the door.