Many Republican faithful, from the grass roots to the Capitol, have concluded that Fred Thompson, the preternaturally avuncular actor and former Senator from Tennessee, is the cure-all for their party's ills. Thompson has yet to enter the presidential race, and yet Thompson already shares front-runner status with former New York City mayor Rudy Giuliani in some national polls of gop voters. Thompson will spend the rest of the summer raising money, which he was scheduled to do conspicuously at a donor event in Washington on July 28. Another advantage to waiting: the longer he remains an unofficial candidate, the longer...