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    Elizabeth Warren defeats Scott Brown

    Hard Mass. race ends in victory for liberalism

    Elizabeth Warren's margin of victory was larger than most experts predicted. To see where the Democrats picked up votes from the 2010 election, toggle between the years below. Size of dot indicates margin of victory; color indicates which party won the town. Hover to see cities.
    Election Year
    2010
    2012

    SOURCE: AP

    Alvin Chang / Globe Staff