The cloud stirred up by a group’s effort to increase voter registration among Massachusetts welfare recipients dovetails with the Democrats’ primary plan for winning this fall’s Senate race. That plan is this: increase turnout among traditional liberal Democratic constituencies by all means possible, swamping Senator Scott Brown and the Republican Party during a presidential year. The challenge to that is by tacking hard to the left, Warren and her party risk alienating unenrolled voters - the majority of the electorate.
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