Hillary's post-debate rally Photogallery

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Democratic presidential hopeful Sen. Hillary Rodham Clinton, gestures as she enters at her post-debate rally in Las Vegas on Tuesday, January 15, 2008. (AP Photo/Elise Amendola)

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Democratic presidential hopeful Sen. Hillary Rodham Clinton, waves as she enters at her post-debate rally in Las Vegas on Tuesday, January 15, 2008. (AP Photo/Elise Amendola)

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Democratic presidential hopefuls Sen. Hillary Rodham Clinton, (R) and Sen. Barack Obama, participate in a Democratic presidential debate in Las Vegas on Tuesday, January 15, 2008. (AP Photo/Jae C. Hong)

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Democratic presidential hopeful Sen. Hillary Rodham Clinton, gestures during a Democratic presidential debate in Las Vegas on Tuesday, January 15, 2008. (AP Photo/Jae C. Hong)

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Democratic presidential hopeful Sen. Hillary Rodham Clinton gestures during a Democratic presidential debate in Las Vegas on Tuesday, January 15, 2008. (AP Photo/Jae C. Hong)