I rather doubt Newt needs anyone to tell him how to 'cool it'. He really IS the smartest guy in the room. I didn't see anything different with Newt tonight. Newt is just being Newt - which is one reason he's winning. He isn't putting on a show - he's simply telling it like he sees it.
That resonates with people. People pick up on phoney - which is why the Establishment's Golden Boy can't get traction.
What a GR8 DEB8 tonight. Loved it when Newt turned to Romney and said Mitt would have been a career politician if he'd WON!