Mask opponents display ‘I can’t breathe’ signs during Carroll ISD meeting in Southlake Protesters wanted school board trustees to end the COVID-19 protocol immediately, but they voted to keep it in place through the end of the school year. Protesters held "I can't breathe" signs outside the Carroll ISD board meeting Monday night, two days after two trustees who oppose the district's cultural competence plan were elected.(Bjorn Bennett / Courtesy) Updated at 4:30 p.m. with details throughout. Opponents of Carroll ISD’s COVID-19 mask mandate gathered inside and outside the administration building Monday during a school board meeting in which trustees voted to keep it in place through the end of the school year.