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 | Democratic party candidate for the U.S. Senate, Bob Casey mingles with supporters at a campaign rally in Erie, Pa., Sunday, Oct. 29, 2006. click to open  |  | Democratic party candidate for the U.S. Senate, Bob Casey addresses supporters at a campaign rally in Erie, Pa., Sunday, Oct. 29, 2006. click to open |  | Republican Mark Kennedy, left, speaks during a Senate candidate debate with Independence Party candidate Robert Fitzgerald, center, and Democrat Amy Klobuchar, right, Sunday, Oct. 29, 2006 in St. Paul, Minn. click to open |
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