(AP) DEARBORN, Mich. -- Mitt Romney officially entered the 2008 presidential race Tuesday, a former one-term Republican governor of Massachusetts suggesting that his record of leadership inside and outside government uniquely positions him to tackle the country's challenges. "I do not believe Washington can be transformed from within by a lifelong politician," Romney said, seeking to turn a potential liability, his limited political experience, into an asset. "There have been too many deals, too many favors, too many entanglements -- and too little real world experience managing, guiding, leading." Romney's remarks were also a veiled swipe at his chief rival...