Here are the materials so far in Ak-Chin Indian Community v. Maricopa-Stanfield Irrigation & Drainage District (D. Ariz.):
2020-05-08 – Dkt 011 – Maricopa-Stanfield_s Motion to Dismiss
2020-05-08 – Dkt 012 – Central Arizona Irrigation Motion to Dismiss
2020-05-29 – Dkt 017 – Plt_s Consolidated Response in Opposition to Defs_ Motions to Dismiss
2020-06-15 – Dkt 021 – Reply ISO Maricopa-Stanfield Irr & Drainage District_s Motion to Dismiss
2020-06-15 – Dkt 022 – CA Irr & Drainage District_s Reply ISO Motion to Dismiss
The complaint is here.