Stunning Kara McCollough Wins Miss USA 2017

Stunning Kara McCollough Wins Miss USA 2017

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Miss District of Columbia wins 2017 edition of Miss USA

Kara McCullough, a 25-year-old chemist working for the U.S. Nuclear Regulatory Commission, was crowned Sunday at the Mandalay Bay Convention Center on the Las Vegas Strip. She will go on to compete on the Miss Universe contest.