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Sidney R. Thomas

See more on Sidney R. Thomas

Senior Circuit Judge
9th U.S. Circuit Court of Appeals
Montana - Billings





Nominated to the 9th U.S. Circuit Court of Appeals in July 1995 by Bill Clinton. Confirmed January 1996. Chief judge 2014-2021.

University of Montana School of Law, 1978



Judicial Profiles
Title Court Published
Sidney Runyan Thomas 9th Circuit Court of Appeals (Montana) Jan. 4, 2010

Columns
Title Category Published
No. The 9th Circuit should not be split up Judges and Judiciary, 9th U.S. Circuit Court of Appeals Mar. 21, 2017

Rulings
Case Category Published
Order: Duncan v. Bonta
concurring
Mar. 20, 2025
LegalForce RAPC Worldwide v. LegalForce, Inc.
author
Intellectual Property Dec. 27, 2024
Rabadi v. U.S. Drug Enforcement Administration
author
Administrative Agencies Nov. 29, 2024
In re: Saldana v. Bronitsky
author
Bankruptcy Nov. 22, 2024
Lopez v. Garland
author
Immigration Sep. 11, 2024
Adams v. County of Sacramento
author
Constitutional Law Sep. 9, 2024
Ruelas v. County of Alameda
author
Criminal Law and Procedure Jul. 25, 2024
Stavrianoudakis v. U.S. Fish and Wildlife Service
dissenting
Civil Procedure Jul. 24, 2024
State of Washington v. U.S. Food & Drug Administration
author
Civil Procedure Jul. 24, 2024
Gonzalez-Lara v. Garland
author
Immigration Jun. 17, 2024
Perez v. City of Fresno
dissenting
Qualified Immunity Apr. 15, 2024
DZ Reserve v. Meta Platforms, Inc.
author
Civil Procedure Mar. 21, 2024
Clark v. Broomfield
author
Prisoners' Rights Oct. 10, 2023
Perez v. Discover Bank
author
Arbitration Jul. 24, 2023
Lee v. Fisher
dissenting
Securities Jun. 1, 2023
Epic Games, Inc. v. Apple, Inc.
dissenting
Antitrust Apr. 24, 2023
McKnight v. Hinojosa
author
Civil Procedure Nov. 30, 2022
Online Merchants Guild v. Maduros
author
Tax Nov. 9, 2022
Amended Opinion: Jones v. Ryan
author
Criminal Law and Procedure Nov. 7, 2022
San Luis Obispo Coastkeeper v. Santa Maria Valley Water Conservation District
author
Environmental Law Sep. 23, 2022
U.S. v. Rodriguez
dissenting
Immigration Sep. 23, 2022
U.S. v. Guerrero
dissenting
Constitutional Law Sep. 2, 2022
CoreCivic, Inc. v. Candide Group, LLC
author
Anti-SLAPP Aug. 30, 2022
Planet Aid v. Reveal
author
Torts Aug. 11, 2022
City and County of San Francisco v. Garland
author
Constitutional Law Jul. 29, 2022
In re Rudolf P. Sienega
author
Bankruptcy Dec. 7, 2021
Jurado v. Davis
author
Criminal Law and Procedure Sep. 13, 2021
Alam v. Garland
author
Immigration Sep. 9, 2021
BNSF Railway v. County of Alameda
author
Tax Aug. 6, 2021
Thompson v. Hebdon
dissenting
Constitutional Law Aug. 2, 2021
Noguera v. Davis
dissenting
Criminal Law and Procedure Jul. 21, 2021
Jones v. Ryan
author
Criminal Law and Procedure Jun. 29, 2021
National Collegiate Athletic Assn. v. Alston
affirmed
Antitrust Jun. 22, 2021
Big Sandy Rancheria Enterprises v. Bonta
author
Native American Affairs Jun. 17, 2021
Cheneau v. Garland
author
Immigration May 14, 2021
Walden v. Shinn
author
Criminal Law and Procedure Mar. 15, 2021
U.S. v. Olson
concurring
Criminal Law and Procedure Feb. 23, 2021
Bello-Reyes v. Gaynor
author
Immigration Jan. 15, 2021
Hall v. U.S. Dept. of Agriculture
dissenting
Government Jan. 4, 2021
U.S. v. Bacon
author
Evidence Nov. 6, 2020
Sierra Club v. Trump
author
Administrative Agencies Oct. 13, 2020
Lam v. Acosta
author
Civil Rights Sep. 28, 2020
State of California v. Trump
author
Constitutional Law Jun. 29, 2020
Sierra Club v. Trump
author
Constitutional Law Jun. 29, 2020
Murray v. BEJ Minerals
author
statutory_interpretation Jun. 18, 2020
In re NCAA Athletic Grant-in-Aid CAP Antitrust Litigation
author
Antitrust May 19, 2020
In re Facebook Inc. Internet Tracking Litigation
author
statutory_interpretation Apr. 10, 2020
Padilla v. Immigration and Customs Enforcement
author
Immigration Mar. 30, 2020
Board of Trustees Glazing Health v. Chambers
author
Civil Procedure Nov. 8, 2019
Ramirez v. Ryan
author
Criminal Law and Procedure Sep. 12, 2019
Rudel v. Hawaii Mgmt Alliance Assn.
author
statutory_interpretation Sep. 12, 2019
Dawson v. NCAA
author
Labor Law Aug. 13, 2019
Avena v. Chappell
author
Civil Rights Aug. 9, 2019
Altera Corp. v. Commissioner of Internal Revenue
author
Tax Jun. 10, 2019
Parsons v. Ryan
concurring
Contracts Dec. 21, 2018
In re City of Stockton
author
Civil Procedure Dec. 11, 2018
Thompson v. Hebdon
dissenting
Constitutional Law Nov. 28, 2018
U.S. v. Moreno Ornelas
dissenting
Criminal Law and Procedure Oct. 26, 2018
Tin Cup v. USACE
author
Environmental Law Sep. 24, 2018
Turlock Irrigation District v. FERC
author
Environmental Law Sep. 7, 2018
San Francisco v. Trump
author
Constitutional Law Aug. 2, 2018
Hicks v. PGA Tour
author
Antitrust Jul. 30, 2018
Munro v. University of Southern California
author
Arbitration Jul. 25, 2018
Altera Corp. v. Commissioner of Internal Revenue
author
Tax Jul. 25, 2018
U.S. v. Pepe
dissenting
Criminal Law and Procedure Jul. 12, 2018
Heavenly Hana v. Hotel Union & Hotel Industry
author
statutory_interpretation Jun. 4, 2018
National Wildlife Federation v. National Marine Fisheries Service
author
Environmental Law Apr. 3, 2018
U.S. v. United States District Court for the District of Oregon
author
Civil Procedure Mar. 8, 2018
Amended Opinion: Song v. Sessions
concurring
Immigration Feb. 16, 2018
Arevalo v. Hennessy
author
Constitutional Law Feb. 12, 2018
California Public Utilities Commission v. Federal Energy Regulatory Commission
author
Administrative Agencies Jan. 9, 2018
Song v. Sessions
concurring
Immigration Dec. 19, 2017
Arellano v. Clark County Collection Service LLC
author
Consumer Law Nov. 20, 2017
Hewlett-Packard Company and Consolidated Subsidiaries v. Commissioner of Internal Revenue
concurring
Tax Nov. 10, 2017
U.S. v. Smith
author
Criminal Law and Procedure Aug. 11, 2017
United States v. Sierra Pacific Industries Inc.
author
Civil Procedure Jul. 14, 2017
Amended Opinion: Burton v. Infinity Capital Management
author
Bankruptcy Jul. 11, 2017
McKeen-Chaplin v. Provident Savings Bank
author
Labor Law Jul. 6, 2017
Title Court Published
Sidney Runyan Thomas 9th Circuit Court of Appeals (Montana) Jan. 4, 2010
Title Category Published
No. The 9th Circuit should not be split up Judges and Judiciary, 9th U.S. Circuit Court of Appeals Mar. 21, 2017
Case Category Published
Order: Duncan v. Bonta
concurring
Mar. 20, 2025
LegalForce RAPC Worldwide v. LegalForce, Inc.
author
Intellectual Property Dec. 27, 2024
Rabadi v. U.S. Drug Enforcement Administration
author
Administrative Agencies Nov. 29, 2024
In re: Saldana v. Bronitsky
author
Bankruptcy Nov. 22, 2024
Lopez v. Garland
author
Immigration Sep. 11, 2024
Adams v. County of Sacramento
author
Constitutional Law Sep. 9, 2024
Ruelas v. County of Alameda
author
Criminal Law and Procedure Jul. 25, 2024
Stavrianoudakis v. U.S. Fish and Wildlife Service
dissenting
Civil Procedure Jul. 24, 2024
State of Washington v. U.S. Food & Drug Administration
author
Civil Procedure Jul. 24, 2024
Gonzalez-Lara v. Garland
author
Immigration Jun. 17, 2024
Perez v. City of Fresno
dissenting
Qualified Immunity Apr. 15, 2024
DZ Reserve v. Meta Platforms, Inc.
author
Civil Procedure Mar. 21, 2024
Clark v. Broomfield
author
Prisoners' Rights Oct. 10, 2023
Perez v. Discover Bank
author
Arbitration Jul. 24, 2023
Lee v. Fisher
dissenting
Securities Jun. 1, 2023
Epic Games, Inc. v. Apple, Inc.
dissenting
Antitrust Apr. 24, 2023
McKnight v. Hinojosa
author
Civil Procedure Nov. 30, 2022
Online Merchants Guild v. Maduros
author
Tax Nov. 9, 2022
Amended Opinion: Jones v. Ryan
author
Criminal Law and Procedure Nov. 7, 2022
San Luis Obispo Coastkeeper v. Santa Maria Valley Water Conservation District
author
Environmental Law Sep. 23, 2022
U.S. v. Rodriguez
dissenting
Immigration Sep. 23, 2022
U.S. v. Guerrero
dissenting
Constitutional Law Sep. 2, 2022
CoreCivic, Inc. v. Candide Group, LLC
author
Anti-SLAPP Aug. 30, 2022
Planet Aid v. Reveal
author
Torts Aug. 11, 2022
City and County of San Francisco v. Garland
author
Constitutional Law Jul. 29, 2022
In re Rudolf P. Sienega
author
Bankruptcy Dec. 7, 2021
Jurado v. Davis
author
Criminal Law and Procedure Sep. 13, 2021
Alam v. Garland
author
Immigration Sep. 9, 2021
BNSF Railway v. County of Alameda
author
Tax Aug. 6, 2021
Thompson v. Hebdon
dissenting
Constitutional Law Aug. 2, 2021
Noguera v. Davis
dissenting
Criminal Law and Procedure Jul. 21, 2021
Jones v. Ryan
author
Criminal Law and Procedure Jun. 29, 2021
National Collegiate Athletic Assn. v. Alston
affirmed
Antitrust Jun. 22, 2021
Big Sandy Rancheria Enterprises v. Bonta
author
Native American Affairs Jun. 17, 2021
Cheneau v. Garland
author
Immigration May 14, 2021
Walden v. Shinn
author
Criminal Law and Procedure Mar. 15, 2021
U.S. v. Olson
concurring
Criminal Law and Procedure Feb. 23, 2021
Bello-Reyes v. Gaynor
author
Immigration Jan. 15, 2021
Hall v. U.S. Dept. of Agriculture
dissenting
Government Jan. 4, 2021
U.S. v. Bacon
author
Evidence Nov. 6, 2020
Sierra Club v. Trump
author
Administrative Agencies Oct. 13, 2020
Lam v. Acosta
author
Civil Rights Sep. 28, 2020
State of California v. Trump
author
Constitutional Law Jun. 29, 2020
Sierra Club v. Trump
author
Constitutional Law Jun. 29, 2020
Murray v. BEJ Minerals
author
statutory_interpretation Jun. 18, 2020
In re NCAA Athletic Grant-in-Aid CAP Antitrust Litigation
author
Antitrust May 19, 2020
In re Facebook Inc. Internet Tracking Litigation
author
statutory_interpretation Apr. 10, 2020
Padilla v. Immigration and Customs Enforcement
author
Immigration Mar. 30, 2020
Board of Trustees Glazing Health v. Chambers
author
Civil Procedure Nov. 8, 2019
Ramirez v. Ryan
author
Criminal Law and Procedure Sep. 12, 2019
Rudel v. Hawaii Mgmt Alliance Assn.
author
statutory_interpretation Sep. 12, 2019
Dawson v. NCAA
author
Labor Law Aug. 13, 2019
Avena v. Chappell
author
Civil Rights Aug. 9, 2019
Altera Corp. v. Commissioner of Internal Revenue
author
Tax Jun. 10, 2019
Parsons v. Ryan
concurring
Contracts Dec. 21, 2018
In re City of Stockton
author
Civil Procedure Dec. 11, 2018
Thompson v. Hebdon
dissenting
Constitutional Law Nov. 28, 2018
U.S. v. Moreno Ornelas
dissenting
Criminal Law and Procedure Oct. 26, 2018
Tin Cup v. USACE
author
Environmental Law Sep. 24, 2018
Turlock Irrigation District v. FERC
author
Environmental Law Sep. 7, 2018
San Francisco v. Trump
author
Constitutional Law Aug. 2, 2018
Hicks v. PGA Tour
author
Antitrust Jul. 30, 2018
Munro v. University of Southern California
author
Arbitration Jul. 25, 2018
Altera Corp. v. Commissioner of Internal Revenue
author
Tax Jul. 25, 2018
U.S. v. Pepe
dissenting
Criminal Law and Procedure Jul. 12, 2018
Heavenly Hana v. Hotel Union & Hotel Industry
author
statutory_interpretation Jun. 4, 2018
National Wildlife Federation v. National Marine Fisheries Service
author
Environmental Law Apr. 3, 2018
U.S. v. United States District Court for the District of Oregon
author
Civil Procedure Mar. 8, 2018
Amended Opinion: Song v. Sessions
concurring
Immigration Feb. 16, 2018
Arevalo v. Hennessy
author
Constitutional Law Feb. 12, 2018
California Public Utilities Commission v. Federal Energy Regulatory Commission
author
Administrative Agencies Jan. 9, 2018
Song v. Sessions
concurring
Immigration Dec. 19, 2017
Arellano v. Clark County Collection Service LLC
author
Consumer Law Nov. 20, 2017
Hewlett-Packard Company and Consolidated Subsidiaries v. Commissioner of Internal Revenue
concurring
Tax Nov. 10, 2017
U.S. v. Smith
author
Criminal Law and Procedure Aug. 11, 2017
United States v. Sierra Pacific Industries Inc.
author
Civil Procedure Jul. 14, 2017
Amended Opinion: Burton v. Infinity Capital Management
author
Bankruptcy Jul. 11, 2017
McKeen-Chaplin v. Provident Savings Bank
author
Labor Law Jul. 6, 2017