Mitt Romney

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Vice President Joseph R. Biden (left) caused a stir of his own with his chuckles and interruptions during a televised debate with Rep. Paul Ryan, Republican presidential candidate Mitt Romney’s running mate. (Associated Press)

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Republican presidential candidate and former Massachusetts Gov. Mitt Romney, left, meets with former President George H.W. Bush and Barbara Bush to receive their endorsements Thursday, March 29, 2012, in Houston. (AP Photo/Pat Sullivan)

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U.S. Secret Service agents stands watch as Republican presidential candidate Mitt Romney addresses the U.S. Hispanic Chamber of Commerce in Los Angeles on Monday, Sept. 17, 2012. (AP Photo/Charles Dharapak)

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White House press secretary Jay Carney holds up a copy of the President's Plan for Economic Growth and Deficit Reduction during his daily news briefing at the White House in Washington on Thursday, Nov. 29, 2012, as President Obama was having a private lunch with former Republican presidential candidate Mitt Romney. (AP Photo/Jacquelyn Martin)

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Former Republican presidential candidate Mitt Romney arrives at the White House in Washington on Thursday, Nov. 29, 2012, for a private luncheon with President Obama. (AP Photo/Pablo Martinez Monsivais)

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Comedian Paul Rodriguez speaks to a crowd of Mitt Romney supporters outside a Romney campaign office in Las Vegas on Saturday, Oct. 20, 2012. Romney officials argue that Hispanics, who suffer from a 9.9 percent unemployment rate, more than 2 points higher than the national rate, are naturally drawn to the GOP ticket. But some Romney supporters are pessimistic that Republicans can make inroads with a population that, many polls show, favors President Obama by a 2-1 margin. (AP Photo/Julie Jacobson)

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Republican presidential candidate Mitt Romney (right) talks with former Florida Gov. Jeb Bush as they fly on Mr. Romney's campaign plane to Miami on Wednesday, Oct. 31, 2012. (AP Photo/Charles Dharapak) ** FILE **

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**FILE** Rep. Allen West (right), Florida Republican, waves before introducing Republican presidential candidate Mitt Romney (center) and Romney's wife, Ann, during a campaign rally in Port St. Lucie, Fla., on Oct. 7, 2012. (Associated Press)

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**FILE** Rep. Allen West (left), Florida Republican, greets the crowd before a campaign rally for Republican presidential candidate Mitt Romney, Sunday in Port St. Lucie, Fla., on Oct. 7, 2012. (Associated Press)

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**FILE** Rep. Allen West (right), Florida Republican, picks up a boy as he greats the crowd before a campaign rally for Republican presidential candidate Mitt Romney in Port St. Lucie, Fla., on Oct. 7, 2012. (Associated Press)

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**FILE** Rep. Allen West (right), Florida Republican, campaigns with Republican presidential candidate Mitt Romney and Romney's wife, Ann, at Tradition Town Square in Port St. Lucie, Fla., on Oct. 7, 2012. (Associated Press)