Miss. Code Ann. § 43-13-139

Nothing contained in this article shall be construed to prevent the Governor, in his discretion, from discontinuing or limiting medical assistance to any individuals who are classified or deemed to be within any optional group or optional category of recipients as prescribed under Title XIX of the federal Social Security Act or the implementing federal regulations. If the Congress or the United States Department of Health and Human Services ceases to provide federal matching funds for any group or category of recipients or any type of care and services, the division shall cease state funding for such group or category or such type of care and services, notwithstanding any provision of this article.