Miss. Code § 37-11-77
Students in public schools may engage in political activities or political or philosophical expression before, during and after the school day in the same manner and to the same extent that students may engage in nonpolitical activities or expression. Students may organize partisan or nonpartisan political groups, political clubs, political rallies, or other politically themed gatherings before, during and after school to the same extent that students are permitted to organize other noncurricular student activities and groups. Partisan and nonpartisan political groups must be given the same access to school facilities for assembling as is given to other noncurricular groups without discrimination based on the political content of the students' expression.
Miss. Code § 37-11-77