Mitt Romney

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Ann Romney, is greeted by her husband, Republican presidential candidate, Mitt Romney, after she addressed the Republican National Convention at the Tampa Bay Times Forum in Tampa, Fla. on Tuesday, August 28, 2012. (Rod Lamkey, Jr./ The Washington Times)

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Delegates wait for Ann Romney, wife of nominated Republican presidential candidate, Mitt Romney, to address the Republican National Convention at the Tampa Bay Times Forum in Tampa, Fla. on Tuesday, August 28, 2012. (Andrew Harnik/ The Washington Times)

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Ann Romney, wife of nominated Republican presidential candidate, Mitt Romney, reacts to cheers before she addresses the Republican National Convention at the Tampa Bay Times Forum in Tampa, Fla. on Tuesday, August 28, 2012. (Andrew Harnik/ The Washington Times)

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Delegates cheer Ann Romney, wife of nominated Republican presidential candidate, Mitt Romney, as she addresses the Republican National Convention at the Tampa Bay Times Forum in Tampa, Fla. on Tuesday, August 28, 2012. (Andrew Harnik/ The Washington Times)

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Ann Romney, wife of nominated Republican presidential candidate, Mitt Romney, waves to delegates at the Republican National Convention at the Tampa Bay Times Forum in Tampa, Fla. on Tuesday, August 28, 2012. (Andrew Harnik/ The Washington Times)

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Delegates cheer as Ann Romney, is greeted by her husband, Republican presidential candidate, Mitt Romney, after she addressed the Republican National Convention at the Tampa Bay Times Forum in Tampa, Fla. on Tuesday, August 28, 2012. (Andrew Harnik/ The Washington Times)

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Ann Romney, wife of U.S. Republican presidential nominee Mitt Romney, addresses the Republican National Convention in Tampa, Fla., on Tuesday, Aug. 28, 2012. (AP Photo/J. Scott Applewhite)

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Former Sen. Rick Santorum of Pennsylvania, one of the social conservatives who sought the GOP nomination but eventually dropped out, says his role at the convention this week is to “amplify” Mr. Romney’s campaign, not to add to it. (Andrew Harnik/The Washington Times)

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Mitt Romney supporters cheer at the conclusion of the Roll Call for Nomination which gave Romney the presidential nomination during the Republican National Convention at the Tampa Bay Times Forum in Tampa, Fla. on Tuesday, August 28, 2012. (Rod Lamkey, Jr./ The Washington Times)

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Wisconsin Gov. Scott Walker (R) announces the Wisconsin delegate votes for Mitt Romney for the Republican nomination for the next president of the United States at the Republican National Convention, Tampa, Fla., Tuesday, August 28, 2012. (Andrew Harnik/The Washington Times)

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Virginia Gov. Bob McDonnell gets ready to announce the Virginia votes for Mitt Romney for the Republican nomination for the next president of the United States at the Republican National Convention, Tampa, Fla., Tuesday, August 28, 2012. (Andrew Harnik/The Washington Times)

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Mitt Romney supporters cheer at the conclusion of the Roll Call for Nomination which gave Romney the presidential nomination during the Republican National Convention at the Tampa Bay Times Forum in Tampa, Fla. on Tuesday, August 28, 2012. (Rod Lamkey, Jr./ The Washington Times)

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Michigan delegates cheer as Mitt Romney's brother Scott, center, announces the delegate votes for Romney's home state at the Republican National Convention, Tampa, Fla., Tuesday, August 28, 2012. (Andrew Harnik/The Washington Times)

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Delegates from the state of Georgia applaud after casting their votes for presidential candidate Mitt Romney during the Republican National Convention in Tampa, Fla., on Tuesday, Aug. 28, 2012. (AP Photo/Lynne Sladky)

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Republican National Committee Vice Chairman Jim Bopp helped prevent a floor fight on Tuesday, negotiating an agreement with the Romney campaign over proposed changes of rules involving the nomination process. (Associated Press)

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Republican presidential candidate Mitt Romney and his wife, Ann, work on their iPads last January as their campaign bus heads for Hialeah, Fla. Mr. Romney has credited his wife with being a crucial adviser in his quest for the presidency. (Associated Press)