FILE—In this Thursday, May 28, 2020, file photograph, Colorado Governor Jared Polis puts on his face mask after a news conference about the state's efforts against the new coronavirus in Denver. During a news conference Tuesday, June 2, 2020, Polis said that the state is adding more than 800 new contact tracers to Colorado's coronavirus testing effort. (AP Photo/David Zalubowski, File)
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