U.S. Rep. Tim Scott smiles during a news conference announcing him as Jim DeMint's replacement in the U.S. Senate at the South Carolina Statehouse on Monday in Columbia. Rainier Ehrhardt/AP hide caption

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Gov. Nikki Haley named Rep. Tim Scott (R-S.C.) to replace retiring Sen. Jim DeMint. In this file photo, Scott makes brief remarks after a meeting with Treasury Secretary Timothy Geithner at the U.S. Capitol on June 2, 2011. Chip Somodevilla/Getty Images hide caption

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Former House Speaker Newt Gingrich participates in the Republican presidential candidate debate in Charleston, S.C., Thursday. David Goldman/AP hide caption

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GOP presidential hopeful Newt Gingrich addresses the South Carolina Chamber of Commerce on Tuesday in Columbia, S.C. The state holds its primary on Saturday. Paul J. Richards/AFP/Getty Images hide caption

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It's All Politics

South Carolina: Gingrich's Last Stand?

In South Carolina, the race to be the conservative alternative to Mitt Romney is hitting a fever pitch. The state's GOP primary is Saturday.

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Republican presidential candidate former U.S. Sen. Rick Santorum speaks to supporters after announcing that he was endorsed Saturday by the evangelical Christian leaders group. Mark Wilson/Getty Images hide caption

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Former Massachusetts Governor Mitt Romney greets supporters during a campaign stop at Cherokee Trikes and More in Greer, S.C. on Thursday. BRIAN SNYDER/Reuters /Landov hide caption

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