A school district based in Dallas, Texas, on Monday issued a temporary mask mandate for students and staff on its campuses and facilities, a move that runs counter to an executive order that Gov. Greg Abbott issued earlier this year. The Dallas Independent School District (ISD), the second-largest school district in Texas, said in an announcement that the order is effective Aug. 10 as students return to classrooms. The order was issued “to protect staff and students from the spread of the highly contagious Delta variant of the coronavirus.” Abbott previously in May issued an executive order to prohibit local governments and schools from requiring masks indoors. Per the order, schools had to end their mask mandates by June 4 or risk fines of up to $1,000. Dallas ISC Superintendent Michael Hinojosa told reporters at a press conference Monday that in his district, “Everyone on campus will be wearing a mask—staff, students, …