Over the past several days, the only real movement in South Carolina’s Republican Presidential Primary has been a four-point gain for Fred Thompson and a five-point decline for Mike Huckabee. The big winner from that trade-off is John McCain. The latest Rasmussen Reports telephone survey shows McCain at 28%, Huckabee at 19%, Mitt Romney at 17%, and Fred Thompson at 16%. Rudy Giuliani and Ron Paul are tied with 5% support. Giuliani is betting his entire campaign on a strong showing in Florida, where he is now tied for the lead with three others....