Republican presidential candidate and former Massachusetts Gov. Mitt Romney walks past senior adviser Ed Gillespie, left, Virginia senate candidate George Allen, second right, and Virginia Gov. Bob McDonnell, right, as they leave a campaign event at Meadow Event Park, in Doswell, Va., for another rally in Virginia Beach, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)

Photo by: Charles Dharapak

Republican presidential candidate and former Massachusetts Gov. Mitt Romney walks past senior adviser Ed Gillespie, left, Virginia senate candidate George Allen, second right, and Virginia Gov. Bob McDonnell, right, as they leave a campaign event at Meadow Event Park, in Doswell, Va., for another rally in Virginia Beach, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)