Miss. Code § 23-15-1065
A person shall be barred from participating in any primary election held by a political party if that person claims or represents himself or herself in any manner to be a member of any state, district or county executive committee of any political party in this state, or claims to be the national committeeman or national committeewoman or any other officer or representative of the political party without having been lawfully elected or chosen as such in the manner provided by the laws of this state, or by the political party in the manner provided by the laws of this state, or claims to be the nominee of any political party authorized by the laws of this state to hold primary elections and choose party nominees, when in fact such person has not been declared the nominee of such political party for such office by such political party operating under the laws of this state. Any person or persons who violate the provisions of this section, in addition to other measures or penalties provided by law, may be enjoined therefrom upon application to the courts by any person or persons, or any political party, official or representative of the political party aggrieved.
Miss. Code § 23-15-1065