Rep. Bill Cassidy, R-La. (right), poses with his family and House Speaker John Boehner at the start of the new Congress, on Jan. 3. On Wednesday, Cassidy announced that he would challenge Democratic Sen. Mary Landrieu in 2014. Cliff Owen/AP hide caption

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Rick Santorum told voters in Mandeville, La. on Wednesday that they were "not looking for someone who's the Etch A Sketch candidate." Sean Gardner /Reuters /Landov hide caption

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In Louisiana, Santorum And Gingrich Hope To 'Reset' GOP Race

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Men fish off a pier at a jetty in Dauphin Island, Ala., with oil rigs in the background. The U.S. government is changing how it regulates drilling platforms.

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