ew GOP presidential front-runner Newt Gingrich, anticipating an attack from fellow contender Mitt Romney, has instructed his campaign staff and advisers not to respond in kind to the former Massachusetts governor, RCP has learned. According to Gingrich campaign spokesman R.C. Hammond, “In response to the dynamics over the last 24 hours about the attacks coming our way, his instructions to us were to not say anything bad about Mitt Romney.” Hammond explained that the campaign has received inquiries about how it will respond to attacks on Gingrich, given the searing Web ad Ron Paul’s operation has released and a reading...