Coronavirus case numbers are hitting record highs globally and in some U.S. states, prompting face-offs between officials who seek to require face coverings and those, particularly conservatives, who oppose such measures. On Thursday, California required that residents wear face masks outside the home, but the sheriff of Orange County says he won’t enforce the statewide mandate. And Nebraska’s Republican governor has threatened to withhold funding from any communities that require masks to be worn in official buildings.