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M. Margaret McKeown

See more on M. Margaret McKeown

Circuit Judge
9th U.S. Circuit Court of Appeals
CA Southern - San Diego





Nominated to the 9th Circuit by President William J. Clinton, Jan. 7, 1997; confirmed by the U.S. Senate, March 27, 1998; partner, Perkins Coie LLP, Seattle, 1981-98; special assistant to the secretary of the interior and special assistant at the White House, 1980-81; associate, Perkins Coie, Seattle, 1975-80

Georgetown University Law Center, 1975



Judicial Profiles
Title Court Published
Seeing the Future 9th U.S. Circuit Court of Appeals (San Diego) Mar. 7, 2018
Former Mountaineer Scales Highest Court in the West 9th U.S.Circuit Court of Appeals May 24, 2007

Rulings
Case Category Published
BillFloat, Inc. v. Collins Cash Inc.
author
Evidence Jul. 1, 2024
Cascadia Wildlands v. Scott Timber Co.
author
Environmental Law Jun. 26, 2024
Seattle Pacific University v. Ferguson
author
Constitutional Law Jun. 7, 2024
U.S. v. Cloud
author
Criminal Law and Procedure May 21, 2024
National Labor Relations Board v. Siren Retail Corp.
author
Labor Law Apr. 24, 2024
Espy v. J2 Global Inc.
author
Securities Apr. 19, 2024
Lexington Insurance Co. v. Smith
author
Native American Affairs Feb. 29, 2024
Peace Ranch, LLC v. Bonta
author
Civil Procedure Feb. 13, 2024
Amended Opinion: Amalgamated Bank v. Facebook, Inc.
author
Securities Dec. 4, 2023
Amalgamated Bank v. Facebook, Inc.
author
Securities Oct. 18, 2023
Martinez v. ZoomInfo Technologies, Inc.
concurring
Anti-SLAPP Sep. 21, 2023
Huffman v. Lindgren
author
Attorneys Sep. 1, 2023
Tarpey v. U.S.
author
Tax Aug. 17, 2023
Kuciemba v. Victory Woodworks Inc.
author
Torts Jul. 25, 2023
Amended Opinion: Jones v. Google LLC
author
Constitutional Law Jul. 13, 2023
VHT Inc. v. Zillow Group, Inc.
author
Copyright Jun. 7, 2023
Sharp v. S&S Activewear, L.L.C.
author
Employment Discrimination Jun. 7, 2023
Murphy Co. v. Biden
author
Environmental Law Apr. 24, 2023
Alfred v. Garland
dissenting
Immigration Mar. 30, 2023
Schurg v. U.S.
author
Immunity Mar. 28, 2023
Omar Gay v. Amy Parsons
author
Immunity Mar. 13, 2023
Armstrong v. Michaels Stores Inc.
author
Arbitration Feb. 13, 2023
Rigsby v. GoDaddy, Inc.
author
Cyber Law Feb. 3, 2023
Jones v. Google LLC
author
Constitutional Law Dec. 28, 2022
Amended Opinion: Owino v. CoreCivic
author
Civil Procedure Dec. 20, 2022
U.S. v. Wright
author
Criminal Law and Procedure Sep. 23, 2022
G and G Closed Circuit Events v. Liu
author
Torts Aug. 22, 2022
Amended Opinion: Transgender Law Center v. Immigration and Customs Enforcement
author
Administrative Agencies Aug. 19, 2022
Love v. Marriott Hotel Services
author
Disability Discrimination Jul. 22, 2022
Macomb County Employees' Retirement System v. Align Technology, Inc.
author
Securities Jul. 7, 2022
Brach v. Newsom
author
Government Jun. 15, 2022
U.S. v. Mendez
author
Criminal Law and Procedure Jun. 7, 2022
Owino v. CoreCivic
author
Civil Procedure Jun. 3, 2022
Gross v. CitiMortgage, Inc.
author
Consumer Law May 17, 2022
Transgender Law Center v. Immigration and Customs Enforcement
author
Administrative Agencies May 13, 2022
Bock v. State of Washington
author
Civil Procedure May 10, 2022
Udo v. Garland
author
Immigration May 5, 2022
Amended Opinion: SmileDirectClub LLC v. Tippins
author
Antitrust Apr. 22, 2022
Estate of Najera Aguirre v. County of Riverside
author
Qualified Immunity Mar. 25, 2022
SmileDirectClub LLC v. Tippins
author
Antitrust Mar. 18, 2022
Kumar v. Garland
author
Immigration Dec. 1, 2021
Quebrado Cantor v. Garland
author
Immigration Nov. 4, 2021
Usubakunov v. Garland
author
Immigration Nov. 2, 2021
City of Oakland v. Wells Fargo & Co.
author
Civil Rights Sep. 29, 2021
Quintero Perez v. U.S.
author
Civil Rights Aug. 17, 2021
Snoqualmie Indian Tribe v. State of Washington
author
Native American Affairs Aug. 9, 2021
National Parks Conservation Association v. Federal Energy Regulatory Commission
author
Administrative Agencies Jul. 29, 2021
U.S. v. Harris
author
Criminal Law and Procedure Jun. 10, 2021
U.S. v. Do
author
statutory_interpretation Apr. 20, 2021
Facebook, Inc. v. Duguid
reversed and remanded
statutory_interpretation Apr. 2, 2021
Friends of the Earth v. Sanderson Farms
author
Constitutional Law Apr. 1, 2021
Dr. Seuss Enterprises v. ComicMix LLC
author
Copyright Dec. 21, 2020
U.S. v. Gainza
author
Criminal Law and Procedure Dec. 9, 2020
Tinian Women Association v. U.S. Dept. of the Navy
author
Environmental Law Sep. 21, 2020
Belgau v. Inslee
author
Civil Rights Sep. 17, 2020
United States v. Pisarski
author
Criminal Law and Procedure Jul. 13, 2020
United States v. Many White Horses
author
Criminal Law and Procedure Jul. 7, 2020
Amended Opinion: Daniels v. The Walt Disney Co.
author
Copyright May 5, 2020
Luna v. Hansen & Adkins Auto Transport
author
Consumer Law Apr. 27, 2020
Daniels v. The Walt Disney Co.
author
Copyright Mar. 17, 2020
Skidmore v. Led Zeppelin
author
Copyright Mar. 10, 2020
Ramirez v. TransUnion
concurring
Constitutional Law Feb. 28, 2020
Prager University v. Google
author
Constitutional Law Feb. 27, 2020
Wilson v. Huuuge Inc.
author
Arbitration Dec. 23, 2019
Columbia Riverkeeper v. Wheeler
author
Environmental Law Dec. 23, 2019
Young v. Pfeiffer
author
Criminal Law and Procedure Aug. 13, 2019
Riley v. Filson
author
Criminal Law and Procedure Aug. 12, 2019
Winding Creek Solar LLC v. Carla Peterman
author
Utilities Jul. 30, 2019
Djerf v. Ryan
author
Civil Rights Jul. 25, 2019
Roque De La Fuente v. Alex Padilla
author
Civil Rights Jul. 22, 2019
Duguid v. Facebook
author
Constitutional Law Jun. 14, 2019
U.S. v. Brown
author
Criminal Law and Procedure Jun. 6, 2019
Austin v. University of Oregon
author
Civil Rights Jun. 5, 2019
Arizona Libertarian Party v. Hobbs
author
Constitutional Law Jun. 3, 2019
Garvin v. Cook Investments NW
author
Bankruptcy May 3, 2019
Castro v. Tri Marine Fish Co
author
Arbitration Apr. 16, 2019
VHT Inc. v. Zillow Group
author
Copyright Mar. 18, 2019
Anderson v. State Farm
author
Civil Procedure Mar. 11, 2019
U.S. v. Gilton
dissenting
Criminal Law and Procedure Mar. 5, 2019
Castro v. Tri Marine Fish Co.
author
Arbitration Feb. 28, 2019
In re Border Infrastructure Environmental Litigation
author
Environmental Law Feb. 12, 2019
Islas-Veloz v. Whitaker
author
Immigration Feb. 5, 2019
Stillaguamish Tribe v. State of Washington
author
Civil Procedure Jan. 23, 2019
Stevens v. Jiffy Lube Int'l
author
Arbitration Dec. 28, 2018
G&G Productions v. Rusic
author
Civil Procedure Aug. 30, 2018
Cobbler Nevada LLC v. Gonzales
author
Intellectual Property Aug. 28, 2018
U.S. v. King Mountain Tobacco Co.
author
Tax Aug. 14, 2018
DeHoog v. Anheuser-Busch
author
Antitrust Aug. 9, 2018
Pena v. Lindley
author
Constitutional Law Aug. 6, 2018
Von Saher v. Norton Simon Museum of Art
author
International Law Jul. 31, 2018
U.S. v. Mickey
author
Criminal Law and Procedure Jul. 31, 2018
Glacier Films v. Turchin
author
Copyright Jul. 25, 2018
Morales v. United States
author
Civil Procedure Jul. 16, 2018
U.S. v. Hernandez
author
Criminal Law and Procedure Jul. 11, 2018
Daniel v. National Park Service
author
Consumer Law May 31, 2018
A Better Way for BPA v. U.S. Doe Bonneville Power Admin.
author
Public Records Act May 30, 2018
Rizo v. Yovino
concurring
Employment Law Apr. 10, 2018
Thompson v. Copeland
author
Qualified Immunity Mar. 14, 2018
U.S. v. Obak
author
Constitutional Law Mar. 14, 2018
Bonivert v. City of Clarkston
author
Constitutional Law Feb. 27, 2018
Federal Trade Commission v. AT&T Mobility
author
statutory_interpretation Feb. 27, 2018
Bassett v. ABM Parking Services
author
Civil Procedure Feb. 22, 2018
Animal Legal Defense Fund v. Wasden
author
Constitutional Law Jan. 5, 2018
Lower Elwha Klallam Tribe v. Lummi Nation
author
Native American Affairs Dec. 4, 2017
U.S. v. Robertson
concurring
Environmental Law Nov. 28, 2017
Douglas v. Xerox Business Services LLC
author
Labor Law Nov. 16, 2017
Makah Indian Tribe v. Quileute Indian Tribe
author
Native American Affairs Oct. 24, 2017
Morales v. Fry
author
Civil Rights Oct. 17, 2017
U.S. v. Spatig
author
Criminal Law and Procedure Sep. 14, 2017
U.S. v. McChesney
author
Criminal Law and Procedure Sep. 12, 2017
Murray v. Southern Route Maritime SA
author
Labor Law Sep. 1, 2017
Quinault Indian Nation v. Pearson
author
Native American Affairs Aug. 30, 2017
Sierra Club v. Pruitt
author
Environmental Law Aug. 29, 2017
In re Google Referrer Header Privacy Litigation
author
Civil Procedure Aug. 23, 2017
U.S. V. Brito
dissenting
Criminal Law and Procedure Aug. 23, 2017
Republic of the Marshall Islands v. USA
author
Government Aug. 1, 2017
Stone Creek Inc. v. Omnia Italian Design Inc.
author
Intellectual Property Jul. 12, 2017
Title Court Published
Seeing the Future 9th U.S. Circuit Court of Appeals (San Diego) Mar. 7, 2018
Former Mountaineer Scales Highest Court in the West 9th U.S.Circuit Court of Appeals May 24, 2007
Case Category Published
BillFloat, Inc. v. Collins Cash Inc.
author
Evidence Jul. 1, 2024
Cascadia Wildlands v. Scott Timber Co.
author
Environmental Law Jun. 26, 2024
Seattle Pacific University v. Ferguson
author
Constitutional Law Jun. 7, 2024
U.S. v. Cloud
author
Criminal Law and Procedure May 21, 2024
National Labor Relations Board v. Siren Retail Corp.
author
Labor Law Apr. 24, 2024
Espy v. J2 Global Inc.
author
Securities Apr. 19, 2024
Lexington Insurance Co. v. Smith
author
Native American Affairs Feb. 29, 2024
Peace Ranch, LLC v. Bonta
author
Civil Procedure Feb. 13, 2024
Amended Opinion: Amalgamated Bank v. Facebook, Inc.
author
Securities Dec. 4, 2023
Amalgamated Bank v. Facebook, Inc.
author
Securities Oct. 18, 2023
Martinez v. ZoomInfo Technologies, Inc.
concurring
Anti-SLAPP Sep. 21, 2023
Huffman v. Lindgren
author
Attorneys Sep. 1, 2023
Tarpey v. U.S.
author
Tax Aug. 17, 2023
Kuciemba v. Victory Woodworks Inc.
author
Torts Jul. 25, 2023
Amended Opinion: Jones v. Google LLC
author
Constitutional Law Jul. 13, 2023
VHT Inc. v. Zillow Group, Inc.
author
Copyright Jun. 7, 2023
Sharp v. S&S Activewear, L.L.C.
author
Employment Discrimination Jun. 7, 2023
Murphy Co. v. Biden
author
Environmental Law Apr. 24, 2023
Alfred v. Garland
dissenting
Immigration Mar. 30, 2023
Schurg v. U.S.
author
Immunity Mar. 28, 2023
Omar Gay v. Amy Parsons
author
Immunity Mar. 13, 2023
Armstrong v. Michaels Stores Inc.
author
Arbitration Feb. 13, 2023
Rigsby v. GoDaddy, Inc.
author
Cyber Law Feb. 3, 2023
Jones v. Google LLC
author
Constitutional Law Dec. 28, 2022
Amended Opinion: Owino v. CoreCivic
author
Civil Procedure Dec. 20, 2022
U.S. v. Wright
author
Criminal Law and Procedure Sep. 23, 2022
G and G Closed Circuit Events v. Liu
author
Torts Aug. 22, 2022
Amended Opinion: Transgender Law Center v. Immigration and Customs Enforcement
author
Administrative Agencies Aug. 19, 2022
Love v. Marriott Hotel Services
author
Disability Discrimination Jul. 22, 2022
Macomb County Employees' Retirement System v. Align Technology, Inc.
author
Securities Jul. 7, 2022
Brach v. Newsom
author
Government Jun. 15, 2022
U.S. v. Mendez
author
Criminal Law and Procedure Jun. 7, 2022
Owino v. CoreCivic
author
Civil Procedure Jun. 3, 2022
Gross v. CitiMortgage, Inc.
author
Consumer Law May 17, 2022
Transgender Law Center v. Immigration and Customs Enforcement
author
Administrative Agencies May 13, 2022
Bock v. State of Washington
author
Civil Procedure May 10, 2022
Udo v. Garland
author
Immigration May 5, 2022
Amended Opinion: SmileDirectClub LLC v. Tippins
author
Antitrust Apr. 22, 2022
Estate of Najera Aguirre v. County of Riverside
author
Qualified Immunity Mar. 25, 2022
SmileDirectClub LLC v. Tippins
author
Antitrust Mar. 18, 2022
Kumar v. Garland
author
Immigration Dec. 1, 2021
Quebrado Cantor v. Garland
author
Immigration Nov. 4, 2021
Usubakunov v. Garland
author
Immigration Nov. 2, 2021
City of Oakland v. Wells Fargo & Co.
author
Civil Rights Sep. 29, 2021
Quintero Perez v. U.S.
author
Civil Rights Aug. 17, 2021
Snoqualmie Indian Tribe v. State of Washington
author
Native American Affairs Aug. 9, 2021
National Parks Conservation Association v. Federal Energy Regulatory Commission
author
Administrative Agencies Jul. 29, 2021
U.S. v. Harris
author
Criminal Law and Procedure Jun. 10, 2021
U.S. v. Do
author
statutory_interpretation Apr. 20, 2021
Facebook, Inc. v. Duguid
reversed and remanded
statutory_interpretation Apr. 2, 2021
Friends of the Earth v. Sanderson Farms
author
Constitutional Law Apr. 1, 2021
Dr. Seuss Enterprises v. ComicMix LLC
author
Copyright Dec. 21, 2020
U.S. v. Gainza
author
Criminal Law and Procedure Dec. 9, 2020
Tinian Women Association v. U.S. Dept. of the Navy
author
Environmental Law Sep. 21, 2020
Belgau v. Inslee
author
Civil Rights Sep. 17, 2020
United States v. Pisarski
author
Criminal Law and Procedure Jul. 13, 2020
United States v. Many White Horses
author
Criminal Law and Procedure Jul. 7, 2020
Amended Opinion: Daniels v. The Walt Disney Co.
author
Copyright May 5, 2020
Luna v. Hansen & Adkins Auto Transport
author
Consumer Law Apr. 27, 2020
Daniels v. The Walt Disney Co.
author
Copyright Mar. 17, 2020
Skidmore v. Led Zeppelin
author
Copyright Mar. 10, 2020
Ramirez v. TransUnion
concurring
Constitutional Law Feb. 28, 2020
Prager University v. Google
author
Constitutional Law Feb. 27, 2020
Wilson v. Huuuge Inc.
author
Arbitration Dec. 23, 2019
Columbia Riverkeeper v. Wheeler
author
Environmental Law Dec. 23, 2019
Young v. Pfeiffer
author
Criminal Law and Procedure Aug. 13, 2019
Riley v. Filson
author
Criminal Law and Procedure Aug. 12, 2019
Winding Creek Solar LLC v. Carla Peterman
author
Utilities Jul. 30, 2019
Djerf v. Ryan
author
Civil Rights Jul. 25, 2019
Roque De La Fuente v. Alex Padilla
author
Civil Rights Jul. 22, 2019
Duguid v. Facebook
author
Constitutional Law Jun. 14, 2019
U.S. v. Brown
author
Criminal Law and Procedure Jun. 6, 2019
Austin v. University of Oregon
author
Civil Rights Jun. 5, 2019
Arizona Libertarian Party v. Hobbs
author
Constitutional Law Jun. 3, 2019
Garvin v. Cook Investments NW
author
Bankruptcy May 3, 2019
Castro v. Tri Marine Fish Co
author
Arbitration Apr. 16, 2019
VHT Inc. v. Zillow Group
author
Copyright Mar. 18, 2019
Anderson v. State Farm
author
Civil Procedure Mar. 11, 2019
U.S. v. Gilton
dissenting
Criminal Law and Procedure Mar. 5, 2019
Castro v. Tri Marine Fish Co.
author
Arbitration Feb. 28, 2019
In re Border Infrastructure Environmental Litigation
author
Environmental Law Feb. 12, 2019
Islas-Veloz v. Whitaker
author
Immigration Feb. 5, 2019
Stillaguamish Tribe v. State of Washington
author
Civil Procedure Jan. 23, 2019
Stevens v. Jiffy Lube Int'l
author
Arbitration Dec. 28, 2018
G&G Productions v. Rusic
author
Civil Procedure Aug. 30, 2018
Cobbler Nevada LLC v. Gonzales
author
Intellectual Property Aug. 28, 2018
U.S. v. King Mountain Tobacco Co.
author
Tax Aug. 14, 2018
DeHoog v. Anheuser-Busch
author
Antitrust Aug. 9, 2018
Pena v. Lindley
author
Constitutional Law Aug. 6, 2018
Von Saher v. Norton Simon Museum of Art
author
International Law Jul. 31, 2018
U.S. v. Mickey
author
Criminal Law and Procedure Jul. 31, 2018
Glacier Films v. Turchin
author
Copyright Jul. 25, 2018
Morales v. United States
author
Civil Procedure Jul. 16, 2018
U.S. v. Hernandez
author
Criminal Law and Procedure Jul. 11, 2018
Daniel v. National Park Service
author
Consumer Law May 31, 2018
A Better Way for BPA v. U.S. Doe Bonneville Power Admin.
author
Public Records Act May 30, 2018
Rizo v. Yovino
concurring
Employment Law Apr. 10, 2018
Thompson v. Copeland
author
Qualified Immunity Mar. 14, 2018
U.S. v. Obak
author
Constitutional Law Mar. 14, 2018
Bonivert v. City of Clarkston
author
Constitutional Law Feb. 27, 2018
Federal Trade Commission v. AT&T Mobility
author
statutory_interpretation Feb. 27, 2018
Bassett v. ABM Parking Services
author
Civil Procedure Feb. 22, 2018
Animal Legal Defense Fund v. Wasden
author
Constitutional Law Jan. 5, 2018
Lower Elwha Klallam Tribe v. Lummi Nation
author
Native American Affairs Dec. 4, 2017
U.S. v. Robertson
concurring
Environmental Law Nov. 28, 2017
Douglas v. Xerox Business Services LLC
author
Labor Law Nov. 16, 2017
Makah Indian Tribe v. Quileute Indian Tribe
author
Native American Affairs Oct. 24, 2017
Morales v. Fry
author
Civil Rights Oct. 17, 2017
U.S. v. Spatig
author
Criminal Law and Procedure Sep. 14, 2017
U.S. v. McChesney
author
Criminal Law and Procedure Sep. 12, 2017
Murray v. Southern Route Maritime SA
author
Labor Law Sep. 1, 2017
Quinault Indian Nation v. Pearson
author
Native American Affairs Aug. 30, 2017
Sierra Club v. Pruitt
author
Environmental Law Aug. 29, 2017
In re Google Referrer Header Privacy Litigation
author
Civil Procedure Aug. 23, 2017
U.S. V. Brito
dissenting
Criminal Law and Procedure Aug. 23, 2017
Republic of the Marshall Islands v. USA
author
Government Aug. 1, 2017
Stone Creek Inc. v. Omnia Italian Design Inc.
author
Intellectual Property Jul. 12, 2017