Sen. Lamar Alexander (R., Tenn.), who chairs the Senate Committee on Health, Education, Labor and Pensions, told CNN Sunday that it would help if Mr. Trump wore a mask in public because it might eliminate political stigma associated with the practice.

“If wearing masks is important—and all the health experts tell us that it is—in containing the disease in 2020, it would help if from time to time the president would wear one to help us get rid of this political debate that says if you’re for Trump, you don’t wear a mask, if you’re against Trump, you do,” Mr. Alexander said…

Arkansas Gov. Asa Hutchinson, a Republican, also said it would help if Mr. Trump would encourage Americans to wear a mask, even if he doesn’t do so himself. “A consistent national message supporting the importance of wearing a mask and social distancing is very important to making sure everybody understands the importance of it,” he said on NBC’s “Meet the Press.” “Nothing beats leadership.”