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Republican presidential hopeful Mitt Romney tosses apples to supporters as he holds a campaign rally at Harmon's Tree Farm in Gilbert, South Carolina, January 20, 2012.
Republican presidential hopeful Mitt Romney tosses apples to supporters as he holds a campaign rally at Harmon's Tree Farm in Gilbert, South Carolina, January 20, 2012.

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Romney: Confident, cautiously optimistic

Accompanied by South Carolina Gov. Nikki Haley, Mitt Romney holds a rally in Gilbert, South Carolina.

Romney: Confident, cautiously optimistic

Accompanied by South Carolina Gov. Nikki Haley, Mitt Romney holds a rally in Gilbert, South Carolina.