Obama introduces running mate Biden (AP)

running mate quickly turned his campaign debut into a slashing attack on Republicans seeking four more years in the White House .

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Sen. John McCain would have to "figure out which of the seven kitchen tables to sit at" when considering his own economic future, said Biden, jabbing at the man he called his personal friend. It was a reference to McCain's recent inartful admission — in a time of economic uncertainty — that he was not sure how many homes he owns.

Full Story: Obama introduces running mate Biden (AP)

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