Vice presidential candidates debate at Washington University in St. Louis, Missouri

Sen. Joe Lieberman (I-CT) (L), Sen. Lindsey Graham (R-SC) (2nd L), former Sen. John Danforth (R-MO), and former Sen. Alan Simpson (R-WY) (R) chat prior to the vice-presidential debate between Republican vice presidential nominee Alaska Gov. Sarah Palin and Democratic vice presidential nominee Sen. Joe Biden (D-DE) at Washington University in St. Louis, Missouri, on October 2, 2008. (UPI Photo/Brian Kersey)