After three years in office, Scott Brown can point to a few high-profile instances when he’s bucked his party. But he seems to view his US Senate seat as an exercise in political positioning. The real promise in Elizabeth Warren’s candidacy, meanwhile, lies in her character. She’s a relentless striver whose life story represents the best of American upward mobility: as a young mother, she worked her way through community colleges and state universities to become the nation’s top expert on financial consumer protection.
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