BOSTON—A pickup-driving image helped put Scott Brown in the U.S. Senate, so is Mitt Romney hoping it will drive him him to the White House? The 2008 Republican presidential candidate and former Massachusetts governor drove a beat-up pickup to a New Hampshire fundraiser Thursday night. He's also driven it to other political events as he weighs another run in 2012. Spokesman Eric Fehrnstrom (FERN'-strum) says Romney has owned the Chevy since 2002 and uses it for errands around his New Hampshire lakeside vacation home. Fehrnstrom says Romney isn't trying to emulate Brown or his upset victory in January, when he...