CLAIRTON, Pa. — Five days a week, Linda Graham trolls tattered neighborhoods of this once thriving steel city outside Pittsburgh for unregistered voters she can sign up as Democrats _ one of thousands of unknown volunteers whose work outside the limelight has already altered the basic arithmetic of the November election.
The epic nomination battle between Barack Obama and Hillary Rodham Clinton helped put millions more Democrats on the voter rolls while Republican registration declined. Now Graham, 45, has taken three...
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