WINNERS * Mitt Romney: The former Massachusetts governor was on friendly territory tonight with an economic-themed debate set in the state where he was born. The crowd was very much on his side — cheering virtually anything he said. * Newt Gingrich: The former House speaker has happened onto a winning debate formula. He bashes the media at every turn, says the format of the debate is ridiculous and throws out red meat — fire Bernanke! — that gets the crowd on his side early on. With Cain’s problems and Perry’s brain freeze, Gingrich is likely to be the biggest...