Joseph Biden - This August 7, 2008 file photo shows Sen. Barack Obama (D-Ill.) (L) standing alongside Sen. Joseph Biden (D-DE) during an AFL-CIO presidential forum at Soldier Field in Chicago. Presumptive Democratic presidential candidate Barack Obama announced today that he has selected Biden as his running mate. (UPI Photo/Brian Kersey/File Photo)
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Senate committee examines roles of diplomacy, military in national security in Washington
This August 7, 2008 file photo shows Sen. Barack Obama (D-Ill.) (L) standing alongside Sen. Joseph Biden (D-DE) during an AFL-CIO presidential forum at Soldier Field in Chicago. Presumptive Democratic presidential candidate Barack Obama announced today that he has selected Biden as his running mate.