CHICAGO (AP) — The Chicago Teachers Union is suing U.S Department of Education Secretary Betsy DeVos and the city’s public school district, saying its policies interfere with the education of special needs students during the coronavirus pandemic.

The union complains that trying to accomplish such tasks as rewriting individual learning that it says the teachers and case managers have been directed to do cuts into valuable time that should be spent providing remote education for some 70,000 special education students.

DeVos’ press secretary has dismissed the lawsuit as a political stunt designed to cover for the union’s own failures.