Here are the materials in Swinomish Indian Tribal Community v. Azar (D.D.C.):
The question in this case is whether, when a tribe collects its own third-party revenue pursuant to 25 U.S.C. § 1641(d)(1), its expenditures of those funds on health care services are eligible for CSC funding from the IHS under the ISDEAA, id. §§ 5325, 5388.