Rick Santorum announces he is suspending his campaign for president during a press conference in Gettysburg, Pa., on Tuesday, surrounded by family members. Jeff Swensen/Getty Images hide caption

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In a video from the Horatio Alger Association, William Doré tells of a tense and abusive childhood. Horatio Alger Association/YouTube hide caption

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Betting Big On Santorum, Donor's Motives A Mystery

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Rick Santorum speaks in Mars, Pa., on Tuesday, after Mitt Romney swept primaries in Wisconsin, Washington, D.C., and Maryland. In his speech, Santorum declared that it's "halftime" in the race for delegates and the GOP nomination. David Maxwell/EPA/Landov hide caption

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Rick Santorum speaks Wednesday in Hollidaysburg, Pa., holding boxing gloves given to him by Pennsylvania State Sen. John Eichelberger (left). On Thursday, Santorum met in private with a group of conservative leaders to discuss next steps in his campaign. Paul J. Richards/AFP/Getty Images hide caption

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The action was in Wisconsin Tuesday night, but Rick Santorum and his wife, Karen, had already moved on to his home state of Pennsylvania. They greeted supporters at an election night rally in Mars. Jason Cohn /Reuters /Landov hide caption

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Jason Cohn /Reuters /Landov

Republican presidential candidate, former U.S. Sen. Rick Santorum speaks at a campaign rally at Four Seasons Sheraton in Mars, Pa., Monday night. Rival Mitt Romney won the Washington, D.C., Maryland and Wisconsin primaries. Jeff Swensen/Getty Images hide caption

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Rick Santorum won the Louisiana Republican presidential primary Saturday, beating front-runner Mitt Romney in the race to challenge President Obama. Jae C. Hong/AP hide caption

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Jae C. Hong/AP

Another Southern Win Keeps Santorum Optimistic

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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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Sean Gardner /Reuters /Landov

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

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