CLEVELAND, OH - JULY 18: A worker vaccuums the floor at the Quicken Loans Arena ahead of the start of the first day of the Republican National Convention on July 18, 2016 in Cleveland, Ohio. An estimated 50,000 people are expected in Cleveland, including hundreds of protesters and members of the media. The four-day Republican National Convention kicks off on July 18. (Photo by John Moore/Getty Images)
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