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Democratic vice presidential candidate Sen. Joe Biden, D-Del., left, and Republican candidate Alaska Gov. Sarah Palin shake hands before the start of a vice presidential debate at Washington University in on Thursday in St. Louis, Mo.
Democratic vice presidential candidate Sen. Joe Biden, D-Del., left, and Republican candidate Alaska Gov. Sarah Palin shake hands before the start of a vice presidential debate at Washington University in on Thursday in St. Louis, Mo. Jeff Roberson
Democratic vice presidential candidate Sen. Joe Biden, D-Del., left, and Republican candidate Alaska Gov. Sarah Palin shake hands before the start of a vice presidential debate at Washington University in on Thursday in St. Louis, Mo.