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Published on Feb 28, 2012
Mitt Romney won the event, turning back a stiff challenge from Rick Santorum but showing vulnerabilities as well: Santorum won groups he's targeted, including strong conservatives, evangelicals, strong Tea Party supporters and ardent abortion opponents. Union voters, fleeing Romney, also helped Santorum. For more on this story, click here: http://abcnews.go.com/blogs/politics/...