Republican presidential candidate Herman Cain speaks Monday at the National Press Club in Washington, D.C. During a question and answer portion of the program, Cain called the accusations of sexual harassment against him "a witch hunt."

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Republican presidential candidate Herman Cain spoke about the harassment allegations at the National Press Club in Washington, D.C., on Monday.

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Republican presidential contender Herman Cain during an appearance at the American Enterprise Institute on Monday.

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Republican presidential candidate Herman Cain speaks at the National Press Club on Monday.

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