Here are the materials so far in United States v. Washington (W.D. Wash.), subproceeding 20-01, aka Upper Skagit Indian Tribe v. Sauk-Suiattle Indian Tribe:
Update (11-12-2020):
28 Sauk-Suiattle Response to 24
31 Upper Skagit Reply in Support of 24
34 Upper Skagit Response to 27