U.S. Supreme Court issued ruling affecting ability of governmental entities to react to public employee religious speech. In Kennedy v. Bremerton Schools, Court ruled public high school can't discipline football coach for publicly praying after each game with most players.
In sequence of cases elevating First Amendment Free Exercise Clause, limiting Establishment Clause, Court held in Kennedy v. Bremerton School District that Free Exercise, Free Speech Clauses protect personal religious observance from government reprisal, suppression.