Article Photos: Virginia Senate race is nation's most expensive



Democratic candidate Tim Kaine and Republican candidate George Allen face off in a debate for the Virginia U.S. Senate seat on Sept. 20, 2012. (Graeme Jennings/Examiner)

Democratic candidate Tim Kaine and Republican candidate George Allen face off in a debate for the Virginia U.S. Senate seat on Sept. 20, 2012. (Graeme Jennings/Examiner)