Mitt Romney

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Supporters cheer as Republican presidential candidate, former Massachusetts Gov. Mitt Romney takes the stage for a campaign event at Meadow Event Park, Thursday, Nov. 1, 2012, in Doswell, Va. (AP Photo/David Goldman)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney waves as he arrives on stage at a campaign stop at Meadow Event Park in Richmond, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)

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Republican presidential candidate and former Massachusetts Gov. Mitt Romney, right, talks with Virginia Republican Senate candidate George Allen, left, and Virginia Gov. Bob McDonnell, center, after a campaign event at Meadow Event Park, in Richmond, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)

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Supporters wave American flags and Republican presidential candidate, former Massachusetts Gov. Mitt Romney waves as he arrives in his campaign bus for a campaign event at Meadow Event Park Thursday, Nov. 1, 2012, in Doswell, Va. (AP Photo/David Goldman)

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Republican presidential candidate and former Massachusetts Gov. Mitt Romney, chief strategist Stuart Stevens, center, and and aide Garrett Jackson are pictured on the campaign bus as they leave a campaign event at Meadow Event Park, in Dowell, Va., for another rally in Virginia Beach, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)

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Republican presidential candidate and former Massachusetts Gov. Mitt Romney gets ready to film a video message for Get Out the Vote (GOTV) after he campaigned at Meadow Event Park in Richmond, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)

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Fans and volunteers await the arrival of Ann Romney, wife of Republican presidential candidate Mitt Romney, at the Romney for Ohio Headquarters in Grandview Heights, Ohio on Wednesday, Oct. 31, 2012. (AP Photo/Columbus Dispatch, Brooke LaValley)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney greets supporters at a campaign event at a window and door factory, Thursday, Nov. 1, 2012, in Roanoke, Va. (AP Photo/The Roanoke Times, Jeanna Duerscherl)

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Accompanied by U.S. Secret Service agents, Republican presidential candidate, former Massachusetts Gov. Mitt Romney greets supporters as he campaigns at Integrity Windows in Roanoke, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)

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Supporters are reflected in a truck's mirror as Republican presidential candidate, former Massachusetts Gov. Mitt Romney campaigns at Integrity Windows in Roanoke, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney greets supporters at a campaign event at a window and door factory, Thursday, Nov. 1, 2012, in Roanoke, Va. (AP Photo/The Roanoke Times, Jeanna Duerscherl)

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Supporters cheer as they wait to hear Republican presidential candidate, former Massachusetts Gov. Mitt Romney speak at a campaign event at a window and door factory, Thursday, Nov. 1, 2012, in Roanoke, Va. (AP Photo/The Roanoke Times, Jeanna Duerscherl)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney and Virginia Republican Senate candidate George Allen tour Integrity Windows before a campaign event in Roanoke, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)

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A supporter holds up a sign as Republican presidential candidate, former Massachusetts Gov. Mitt Romney makes a speech at a campaign event at a window and door factory, Thursday, Nov. 1, 2012, in Roanoke, Va. (AP Photo/The Roanoke Times, Jeanna Duerscherl)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney gestures while speaking at a campaign event at a window and door factory, Thursday, Nov. 1, 2012, in Roanoke, Va. (AP Photo/The Roanoke Times, Jeanna Duerscherl) LOCAL TV OUT; SALEM TIMES REGISTER OUT; FINCASTLE HERALD OUT; CHRISTIANBURG NEWS MESSENGER OUT; RADFORD NEWS JOURNAL OUT; ROANOKE STAR SENTINEL OUT

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, right, accompanied by Virginia Republican Senate candidate George Allen, left, talks with Bill's Barbecue owner Rhoda Elliott, in red, right, during his visit to the now closed restaurant, before attending a campaign event in Richmond, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, accompanied by Virginia Republican Senate candidate George Allen, left, talks with Bill's Barbecue owner Rhoda Elliott, in red, back to camera, during s visit to the closed restaurant, before attending a campaign event in Richmond, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney gestures as he campaigns at Integrity Windows in Roanoke, Va., Thursday, Nov. 1, 2012. (AP Photo/Charles Dharapak)