Former Vice President Joe Biden and Senator Kamala Harris are calling for a three-month nationwide mask mandate to limit the spread of coronavirus

During a briefing by public health experts in Wilmington, Biden, the presumptive Democratic presidential nominee, told reporters that all the nation’s governors should require this.

“Every single American should be wearing a mask when they’re outside for the next three months, at a minimum. Every governor should mandate mandatory mask-wearing,” Biden said, suggesting that widespread mask use could save 40,000 lives over the next three months. “Let’s institute a mask mandate nationwide starting immediately, and we will save lives.”

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