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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 9th U.S. Circuit Court of Appeals, Judges and Judiciary Mar. 21, 2017

Rulings
Case Category Published
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 9th U.S. Circuit Court of Appeals, Judges and Judiciary Mar. 21, 2017
Case Category Published
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
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