Mark N. Fox is the Chairman of the Mandan, Hidatsa, and Arikara Nation. Fox is a veteran of the U.S. Marine Corps and earned his law degree in 1993 from the University of North Dakota. First elected Chairman in 2014, Fox is currently serving his second term. Chairman Fox currently serves on three federal advisory boards for the Department of Energy, Department of Interior, and the Environmental Protection Agency. He previously served on advisory boards with the Internal Revenue Service and the National Indian Gaming Commission as well. Chairman Fox also served on various national and tribal boards, including the Intertribal Monitoring Association on Trust Funds (ITMA) and four terms as Treasurer of the National Indian Gaming Association (NIGA).