Former Alaska Gov. Sarah Palin speaks during the Republican Party of Iowa's Ronald Reagan dinner on Friday in Des Moines. Charlie Neibergall/Associated Press hide caption

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California Gov. Arnold Schwarzenegger (left) inspects Japan's high-speed-train operations in Saitama, as his home state looks to modernize its rail system. California is among the states that received $8 billion in stimulus money for high-speed rail. Shuji Kajiyama/Getty Images hide caption

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New York City Mayor Michael Bloomberg (left) endorsed Washington, D.C., Mayor Adrian Fenty on Tuesday. Jacquelyn Martin/AP hide caption

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Cindy Lohman is seen holding a photo of her son Ryan, who was killed by a bomb in Afghanistan. She says she feels betrayed by Prudential, his life insurance company. Bill Cramer/Bloomberg hide caption

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Ted Stevens served Alaska in the Senate for four decades, but lost a re-election bid amid corruption charges in 2008. Mark Wilson/Getty Images hide caption

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