A quick read on where we are so far.
I think Newt basically won this debate and maybe the primary with the opening fusilade against John King about the Marianne tell-all interview. Shameless, hubris, chutzpah, whatever. It was pitch perfect for his intended audience. He took control of the debate and drew down all the tension about when the debate would turn to the open marriage stuff.
A short time later his campaign released his tax returns. Another little ambush set there for Newt.
Mitt's done fine. But he's felt like a bystander so far to me in this debate. That's fine when he's ahead. But he needs to shake things up, upset Newt's momentum. And he hasn't. Not even close.