As many states prepare to keep students’ learning online in the fall, some are weighing whether to extend religious exemptions to schools run by churches.

The question of regulating religious schools is a First Amendment concern, Texas Attorney General Ken Paxton wrote in a Saturday letter to local government officials, stressing that because of the Free Exercise Clause of the Constitution and the Religious Freedom Restoration Act, county governments are “prohibited from closing religious institutions or dictating mitigation strategies to those institutions.”