The school board in Florida’s Hillsborough County voted on Wednesday to impose a mask mandate on school children in defiance of a state rule put in place by the administration of Republican Gov. Ron DeSantis. The board voted 5 to 2 in favor of the mask mandate, which allows parents to opt-out only with a note from a doctor, according to Fox 13. The doctor’s note requirement for opting out is similar to the one imposed by Alachua County, which is already under investigation by the state for violating the emergency rule, which requires school districts to allow parents to opt their children out of wearing masks. The state’s Department of Health and Department of Education adopted the rule earlier this month in response to an executive order issued by DeSantis. The order called on state agencies to create protocols to protect school children against the spread of COVID-19. The order …