Last night, Romney owned Gingrich.
ADDED: The phrase "Romney owned Gingrich" also appears in this MSNBC piece, introducing this text:
If Mitt Romney wins the nomination, we'll look back and say the first hour of last night’s debate and say that was when he finally put it away. Romney dominated Newt Gingrich -- from the opening barbs over immigration to his effective response to Gingrich on Freddie/Fannie money (“Mr. Speaker have you checked your own investments?”) to squashing Gingrich’s attempt to co-opt the audience once again (“Wouldn’t it be nice if people wouldn’t make accusations somewhere else that they aren’t willing to make here?”). Romney was aggressive without being petulant. He finally looked comfortable sparring. He looked for the first time like he deserved the moniker “front runner” on stage. And it certainly helped that he had a new debate coach. Romney just wasn’t the same guy.