AdvertisementIn Florida, Texas And Arizona, Defiant School Leaders Are Sticking With Mask MandatesUpdated August 18, 2021Clare LombardofacebookEmailStudents arrive for the first day of school on Aug. 10 at Sessums Elementary School in Hillsborough County, Fla. After thousands of students were put in isolation or quarantine, the district is revisiting its safety protocols, including its mask-optional policy. (AP)This article was originally published on August 18, 2021.