Biden to GOP governors threatening to sue over vaccine mandates: 'Have at it'

President Joe Biden visited a middle school in Washington on Friday to talk about keeping students safe in classrooms after announcing sweeping new vaccine requirements.

President Joe Biden and first lady Jill Biden visited a local middle school in Washington on Friday to talk about keeping students safe in classrooms as the raging delta variant has upended the start of the school year -- and one day after Biden took his toughest tone yet and announced sweeping new federal requirements for vaccines and testing. But Biden also offered another lesson to the next generation when asked by ABC News Congressional Correspondent Rachel Scott about Republican governors calling his call for vaccination mandates an "overreach" and threatening to sue the federal government over his new plan. "Have at it," Biden said. "I am so disappointed that particularly some Republican governors have been so cavalier with the health of these kids, so cavalier with the health of their communities," he said following brief remarks on keeping schools safe.