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Arizona v. Navajo Nation

Consolidated with:

Docket No. Op. Below Argument Opinion Vote Author Term
21-1484 9th Cir. Mar 20, 2023 Jun 22, 2023 5-4 Kavanaugh OT 2022

Holding: The 1868 treaty establishing the Navajo Reservation reserved necessary water to accomplish the purpose of the Navajo Reservation but did not require the United States to take affirmative steps to secure water for the tribe.

Judgment: Reversed, 5-4, in an opinion by Justice Kavanaugh on June 22, 2023. Justice Thomas filed a concurring opinion. Justice Gorsuch filed a dissenting opinion, in which Justices Sotomayor, Kagan, and Jackson joined.

DateProceedings and Orders (key to color coding)
05/17/2022Petition for a writ of certiorari filed. (Response due June 24, 2022)
06/16/2022Waiver of right of respondent Navajo Nation to respond filed.
06/17/2022Waiver of right of respondent Arizona Power Authority to respond filed.
06/21/2022Motion to extend the time to file a response from June 24, 2022 to July 25, 2022, submitted to The Clerk.
06/23/2022Motion to extend the time to file a response is granted and the time is extended to and including July 25, 2022.
07/15/2022Memorandum of respondents Department of the Interior, et al. filed.
07/21/2022Motion of the Navajo Nation seeking an extension of time to file a response from July 25, 2022 to September 23, 2022, submitted to The Clerk.
07/22/2022The motion of the Navajo Nation is granted and the time to file a response is extended to and including September 23, 2022.
09/23/2022Brief of respondent Navajo Nation in opposition filed.
10/07/2022Reply of petitioners Arizona, et al. filed. (Distributed)
10/12/2022DISTRIBUTED for Conference of 10/28/2022.
10/31/2022DISTRIBUTED for Conference of 11/4/2022.
11/04/2022Petition GRANTED. The petition for a writ of certiorari in No. 22-51 is granted. The cases are consolidated, and a total of one hour is allotted for oral argument. VIDED.
11/04/2022Because the Court has consolidated these cases for briefing and oral argument, future filings and activity in the cases will now be reflected on the docket of No. 21-1484. Subsequent filings in these cases must therefore be submitted through the electronic filing system in No. 21-1484. Each document submitted in connection with one or more of these cases must include on its cover the case number and caption for each case in which the filing is intended to be submitted. Where a filing is submitted in fewer than all of the cases, the docket entry will reflect the case number(s) in which the filing is submitted; a document filed in all of the consolidated cases will be noted as “VIDED.”
12/19/2022Brief of the Federal Parties filed. VIDED.
12/19/2022Joint appendix filed. VIDED. (Statement of cost filed.)
12/19/2022Brief of Colorado filed (as to 21-1484).
12/19/2022Brief of Arizona, et al. filed. VIDED.
12/27/2022Brief amici curiae of Western Water Users and Trade Associations filed. VIDED.
12/27/2022Brief amicus curiae of Citizens Equal Rights Foundation in support of neither party (also in 22-51) filed. VIDED.
12/28/2022Motion of respondent Navajo Nation for an extension of time filed. VIDED.
01/03/2023Motion to extend the time to file the brief on the merits of respondent Navajo Nation is granted and the time is extended to and including February 1, 2023. VIDED.
01/31/2023SET FOR ARGUMENT on Monday, March 20, 2023. VIDED.
02/01/2023Brief of respondent Navajo Nation filed. VIDED
02/03/2023Record requested from the U.S.C.A. for the Ninth Circuit. VIDED.
02/03/2023All records from the USCA-9th Circuit are available on PACER. Sealed records from the USDC-Arizona were transmitted electronically.
02/07/2023Motion for divided argument filed by the Solicitor General. VIDED.
02/08/2023Amicus brief of Coalition of Large Tribes not accepted for filing. (February 09, 2023 - corrected efiling to be submitted).
02/08/2023Brief amicus curiae of Coalition of Large Tribes filed. VIDED. (Distributed)
02/08/2023Brief amici curiae of Historians filed. VIDED. (Distributed)
02/08/2023Brief amici curiae of Southern Ute Indian Tribe and Ute Mountain Ute Tribe filed. VIDED. (Distributed)
02/08/2023Brief amici curiae of Prof. Daniel McCool, Prof. Ezra Rosser, and Prof. David Wilkins filed. VIDED. (Distributed)
02/08/2023Brief amicus curiae of Diné Hataalii Association, Inc. filed. VIDED. (Distributed)
02/08/2023Brief amici curiae of Tribal Nations and Indian Organizations filed. VIDED. (Distributed)
02/08/2023Brief amici curiae of Ute Indian Tribe of the Uintah and Ouray Reservation filed. VIDED. (Distributed)
02/08/2023Brief amici curiae of Lawrence J. MacDonnell, et. al. filed. VIDED. (Distributed)
02/08/2023Brief amici curiae of DigDeep Right to Water Project, et al. filed (Feb.14, 2023). VIDED. (Distributed)
02/10/2023CIRCULATED
03/03/2023Reply of Arizona, et al. filed. VIDED. (Distributed)
03/03/2023Reply of Colorado filed (as to 21-1484). (Distributed)
03/03/2023Reply of Federal Parties filed. VIDED. (Distributed)
03/17/2023Motion for divided argument filed by the Solicitor General GRANTED. VIDED.
03/20/2023Argued. For federal parties: Frederick Liu, Assistant to the Solicitor General, Department of Justice, Washington, D. C. For state parties: Rita P. Maguire, Phoenix, Ariz. For Navajo Nation: Shay Dvoretzky, Washington, D. C. VIDED.
04/07/2023Letter filed. VIDED. (Distributed)
06/22/2023Judgment REVERSED. Kavanaugh, J., delivered the opinion of the Court, in which Roberts, C. J., and Thomas, Alito, and Barrett, JJ., joined. Thomas, J., filed a concurring opinion. Gorsuch, J., filed a dissenting opinion, in which Sotomayor, Kagan, and Jackson, JJ., joined. VIDED.
07/24/2023Judgment issued.