Attorney(s) appearing for the Case
H. Thomas Byron III (argued), Edward Himmelfarb , and Michael Shih , Appellate Staff; Hashim M. Mooppan , Deputy Assistant Attorney General; Joseph H. Hunt , Assistant Attorney General; Civil Division, United States Department of Justice, Washington, D.C.; for Defendants-Appellants/Cross-Appellees Donald J. Trump, United States of America, United States Department of Defense, Mark T. Esper, Ryan D. McCarthy, Kenneth J. Braithwaite, Barbara M. Barrett, United States Department of the Treasury, Steven Terner Mnuchin, U.S. Department of the Interior, David Bernhardt, U.S. Department of Homeland Security, and Chad F. Wolf.
Heather C. Leslie (argued), Brian J. Bilford , Sparsh S. Khandeshi , Lee I. Sherman , Janelle M. Smith , and James F. Zahradka II , Deputy Attorneys General; Michael P. Cayaban , Christine Chuang , and Edward H. Ochoa , Supervising Deputy Attorneys General; Joshua A. Klein , Deputy Solicitor General; Harrison M. Pollack , Acting Senior Assistant Attorney General; Robert W. Byrne and Michael L. Newman , Senior Assistant Attorneys General; Xavier Becerra , Attorney General; Attorney General's Office, Sacramento, California; Philip J. Weiser , Attorney General; Eric R. Olson , Solicitor General; Office of the Attorney General, Denver, Colorado; Clare E. Connors , Attorney General; Robert T. Nakatsuji , First Deputy Solicitor General; Department of the Attorney General, Honolulu, Hawaii; Brian E. Frosh , Attorney General; Jeffrey P. Dunlap , Assistant Attorney General; Attorney General's Office, Baltimore, Maryland; Hector Balderas , Attorney General; Tania Maestas , Chief Deputy Attorney General; Nicholas M. Sydow , Civil Appellate Chief; and Jennie Lusk , Civil Rights Bureau Chief; Office of the Attorney General, Santa Fe, New Mexico; Letitia James , Attorney General; Matthew Colangelo , Chief Counsel for Federal Initiatives, Steven C. Wu , Deputy Solicitor General; Eric R. Haren , Special Counsel; Gavin McCabe , Special Assistant Attorney General; Amanda Meyer , Assistant Attorney General; Office of the Attorney General, Albany, New York; Ellen Rosenblum , Attorney General; Benjamin Gutman , Solicitor General; J. Nicole Defever , Senior Assistant Attorney General; Office of the Attorney General, Salem, Oregon; Mark R. Herring , Attorney General; Toby J. Heytens , Solicitor General; Michelle S. Kallen and Martine E. Cicconi , Deputy Solicitors General; Jessica M. Samuels , Assistant Solicitor General; Zachary R. Glubiak , Attorney; Office of the Attorney General, Richmond, Virginia; Joshua L. Kaul , Attorney General; Gabe Johnson-Karp , Assistant Attorney General; Office of the Attorney General, Madison, Wisconsin; for Plaintiffs-Appellees/Cross-Appellants.
Dror Ladin (argued), Noor Zafar , Jonathan Hafetz , Hina Shamsi , and Omar C. Jadwat , American Civil Liberties Union Foundation, New York, New York; Cecilia D. Wang , American Civil Liberties Union, San Francisco, California; Mollie M. Lee , American Civil Liberties Union Foundation of Northern California Inc., San Francisco, California; David Donatti and Andre I. Segura , American Civil Liberties Union Foundation of Texas, Houston, Texas; Sanjay Narayan and Gloria D. Smith , Sierra Club Environmental Law Program, Oakland, California; for Plaintiffs-Appellees Sierra Club and Southern Border Communities Coalition.
Josephine Morse (argued), Megan Barbero , and Adam A. Grogg , Attorneys; Todd B. Tatelman , Principal Deputy General Counsel; Douglas N. Letter , General Counsel; Office of General Counsel, U.S. House of Representatives, Washington, D.C.; Carter G. Phillips , Virginia A. Seitz , Joseph R. Guerra , and Christopher A. Eisenwerth , Sidley Austin LLP, Washington, D.C.; for Amicus Curiae U.S. House of Representatives.
Lawrence J. Joseph , Washington, D.C.; for Christopher J. Hajec , Immigration Reform Law Institute, Washington, D.C.; for Amicus Curiae U.S. Representative Andy Barr.
Anton Metlitsky and Ephraim McDowell , O'Melveny & Myers LLP, New York, New York; Kristy Parker , Justin Florence , Deana K. El-Mallawany , Jessica Marsden , Erica Newland , and Cameron Kistler , The Protect Democracy Project Inc., Washington, D.C.; David Bookbinder , Niskanen Center, Washington, D.C.; Laurence H. Tribe , Cambridge, Massachusetts; Stuart Gerson , Epstein Becker Green, Washington, D.C.; Richard Mancino and Shaimaa M. Hussein , Willie Farr & Gallagher LLP, New York, New York; for Amici Curiae El Paso County, Texas; Border Network for Human Rights; Protect Democracy; and Niskanen Center.
Elizabeth Goitein and J. Andrew Boyle , Brennan Center for Justice at NYU Law, Washington, D.C., for Amici Curiae Brennan Center for Justice and Cato Institute.
Irvin B. Nathan , Robert N. Weiner , Andrew T. Tutt , Kaitlin Konkel , and Samuel F. Callahan , Arnold & Porter Kaye Scholer LLP, Washington, D.C.; Douglas A. Winthrop , Arnold & Porter Kaye Scholer LLP, San Francisco, California; for Amici Curiae Former Members of Congress.
Phillip Spector , Messing & Spector LLP, Baltimore, Maryland; Harold Hongju Koh , Peter Gruber Rule of Law Clinic, New Haven, Connecticut; Maxwell V. Pritt , Boies Schiller Flexner LLP, San Francisco, California; for Amici Curiae Former U.S. Government Officials.
Mark R. Conrad , William J. Cooper , and Courtney C. Aasen , Conrad & Metlitzky LLP, San Francisco, California; Lindsay L. Rodman , Iraq and Afghanistan Veterans of America, New York, New York; for Amicus Curiae Iraq and Afghanistan Veterans of America.
Elizabeth B. Wydra , Brianne J. Gorod , Brian R. Frazelle , and Ashwin P. Phatak , Constitutional Accountability Center, Washington, D.C., for Amici Curiae Federal Courts Scholars.
Robert W. Ferguson , Attorney General; Martha Rodriguez López , Andrew R.W. Hughes , and Brendan C. Selby , Assistant Attorneys General; Office of the Attorney General, Seattle, Washington; for Amicus Curiae State of Washington.
Dissent by Judge Collins
