A group of parents sued the state of Minnesota asking a judge to order Gov. Tim Walz (D) to impose a statewide school mask mandate.

A masked-up student attending class at a U.S. school on Sept. 10, 2020. George Frey/AFP via Getty Images
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A group of parents sued the state of Minnesota asking a judge to order Gov. Tim Walz (D) to impose a statewide school mask mandate.