citizen of the United States
(4) Citizen of the United States .— The term “citizen of the United States” means any person who is a United States citizen by law, birth, or naturalization, any State, any agency of a State or a group of States, or any corporation, partnership, or association organized under the laws of any State which has as its president or other executive officer and as its chairman of the board of directors, or holder of a similar office, a person who is a United States citizen by law, birth or naturalization and which has no more of its directors who are not United States citizens by law, birth or naturalization than constitute a minority of the number required for a quorum necessary to conduct the business of the board.