Democratic presidential nominee Hillary Clinton waves to the audience as Republican presidential nominee Donald Trump puts away his notes after the third presidential debate at UNLV in Las Vegas, Wednesday, Oct. 19, 2016. (AP Photo/John Locher)
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Third Presidential Debate 2016 23 videos
Democratic presidential nominee Hillary Clinton waves to the audience as Republican presidential nominee Donald Trump puts away his notes after the third presidential debate at UNLV in Las Vegas, Wednesday, Oct. 19, 2016. (AP Photo/John Locher)
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Trump, Clinton do not shake hands after final debate
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Democratic presidential nominee Hillary Clinton and Republican presidential nominee Donald Trump debate during the third presidential debate at UNLV in Las Vegas, Wednesday, Oct. 19, 2016. (Mark Ralston/Pool via AP)
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US Republican presidential candidate Donald Trump speaks during the final presidential debate at the Thomas & Mack Center on the campus of the University of Las Vegas in Las Vegas, Nevada on October 19, 2016. / AFP / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)
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Republican presidential nominee Donald Trump answers a question during the third presidential debate at UNLV in Las Vegas on Wednesday, October 19, 2016.
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Democratic presidential nominee Hillary Clinton answers a question during the third presidential debate at UNLV in Las Vegas, Wednesday, Oct. 19, 2016. (AP Photo/John Locher)
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LAS VEGAS, NV - OCTOBER 19: Republican presidential nominee Donald Trump listens as Democratic presidential nominee former Secretary of State Hillary Clinton speaks during the third U.S. presidential debate at the Thomas & Mack Center on October 19, 2016 in Las Vegas, Nevada. Tonight is the final debate ahead of Election Day on November 8. (Photo by Win McNamee/Getty Images)
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LAS VEGAS, NV - OCTOBER 19: Republican presidential nominee Donald Trump listens as Democratic presidential nominee former Secretary of State Hillary Clinton speaks during the third U.S. presidential debate at the Thomas & Mack Center on October 19, 2016 in Las Vegas, Nevada. Tonight is the final debate ahead of Election Day on November 8. (Photo by Win McNamee/Getty Images)
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Democratic presidential nominee Hillary Clinton, left and Republican presidential nominee Donald Trump listen to a question from Moderator Chris Wallace of FOX News during the third presidential debate at UNLV in Las Vegas, Wednesday, Oct. 19, 2016. (Joe Raedle/Pool via AP)
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Washington CNN  —