Trump and DeSantis clash with Biden as the mask wars roar back to life

 https://edition.cnn.com/2021/07/28/politics/mask-wars-are-back/index.html

Only two months ago, the CDC said vaccinated people didn't have to wear masks indoors with the pandemic apparently in retreat. But on Tuesday, with the highly transmissible Delta variant raging, the top public health agency said that even vaccinated people in areas of "substantial" and "high" transmission of the coronavirus should mask up. And it said that everyone -- staff, kids and visitors -- should wear masks in K-12 schools when the summer break ends.

The decision was taken in the context of new data showing that vaccinated people infected with the Delta strain can play a limited role in transmission, even if their chances of getting seriously ill and dying are still very low.

The announcement that masking is back for many Americans came as a devastating blow to morale and could have significant political implications for a White House that made ending the pandemic this year its signature goal.