Can Schools Really Discipline High School Anthem Protesters?

Did Bossier Parish Schools Superintendent Scott Smith go too far in his statement regarding potential National Anthem protests, saying that principals and staffs have discretion in determining consequences. Attorney Royal Alexander talks with 101.7 / 710 KEEL's Robert J Wright and Greg Atoms, pointing out that the students right to "take a knee" is, most likely, protected by the First Amendment.