Colorado Governor Jared Polis wears a face mask as he heads into a news conference to update reporters on the state's efforts to stem the rise of the new coronavirus Wednesday, May 6, 2020, in Denver. (AP Photo/David Zalubowski)

A lone person walks across normally-congested 14th Street at the intersection with Broadway as residents stay home to stem the rise of the new coronavirus Wednesday, May 6, 2020, in Denver. (AP Photo/David Zalubowski)

Colorado Governor Jared Polis, right, makes a point as nurse Laura Rosenthal of the University of Colorado Medical School looks on during a news conference to update reporters on the state's efforts to stem the rise of the new coronavirus Wednesday, May 6, 2020, in Denver. (AP Photo/David Zalubowski)

Colorado Governor Jared Polis pulls on his face mask during a news conference to update reporters on the state's efforts to stem the rise of the new coronavirus Wednesday, May 6, 2020, in Denver. (AP Photo/David Zalubowski)

A cyclist wears a face covering while pedaling up a trail as other cyclists pause to watch jet pilots from the Colorado Air National Guard take part in a flyover across the Boulder Valley as part of a statewide tour to honor essential workers on the job during the outbreak of the new coronavirus Wednesday, May 6, 2020, in Boulder, Colo. (AP Photo/David Zalubowski)

Larry Cavanaugh waves an American Flag as Janet films two F-16 fighter planes fly over (top left corner) Wednesday, May 6, 2020 in Vail, Colo. The flyover was to pay respect to healthcare workers around Colorado. The F-16s hit numerous front range and mountain towns during the flyover. (Chris Dillmann/Vail Daily via AP)

Colorado Governor Jared Polis makes a point during a news conference to update reporters on the state's efforts to stem the rise of the new coronavirus Wednesday, May 6, 2020, in Denver. (AP Photo/David Zalubowski)

Colorado Governor Jared Polis makes a point during a news conference to update reporters on the state's efforts to stem the rise of the new coronavirus Wednesday, May 6, 2020, in Denver. (AP Photo/David Zalubowski)

A man pulls on his bandana to watch as jet pilots from the Colorado Air National Guard take part in a flyover across the Boulder Valley as part of a statewide tour to honor essential workers on the job during the rise of the new coronavirus, Wednesday, May 6, 2020, in Boulder, Colo. (AP Photo/David Zalubowski)

Motorists park along Highway 36 to watch jet pilots from the Colorado Air National Guard take part in a flyover across the Boulder Valley as part of a statewide tour to honor essential workers on the job during the rise of the new coronavirus Wednesday, May 6, 2020, in Boulder, Colo. (AP Photo/David Zalubowski)

Colorado Governor Jared Polis, front, makes a point as nurse Laura Rosenthal of the University of Colorado School of Medicine looks on during a news conference to update reporters on the state's efforts to stem the rise of the new coronavirus Wednesday, May 6, 2020, in Denver. (AP Photo/David Zalubowski)

Colorado Governor Jared Polis puts on his face mask to make a point during a news conference to update reporters on the state's efforts to stem the rise of the new coronavirus Wednesday, May 6, 2020, in Denver. (AP Photo/David Zalubowski)

Colorado Governor Jared Polis holds up a face mask to make a point during a news conference to update reporters on the state's efforts to stem the rise of the new coronavirus Wednesday, May 6, 2020, in Denver. (AP Photo/David Zalubowski)

Michela Blosfield waves to members of the Colorado Air National Guard's 140th Wing as the F-16 Fighting Falcon jets fly over UCHealth Memorial North Hospital in Colorado Springs, Colo., Wednesday, May 6, 2020, to salute local health care workers, first responders and essential workers. (Chancey Bush/The Gazette via AP)

Colorado Governor Jared Polis makes a point during a news conference to update reporters on the state's efforts to stem the rise of the new coronavirus Wednesday, May 6, 2020, in Denver. (AP Photo/David Zalubowski)

Jet pilots from the Colorado Air National Guard take part in a flyover across the Boulder Valley as part of a statewide tour to honor essential workers on the job during the outbreak of the new coronavirus Wednesday, May 6, 2020, in Boulder, Colo. (AP Photo/David Zalubowski)