SIERRA CLUB v. TRUMP

Attorney(s) appearing for the Case

H. Thomas Byron III (argued), Anne Murphy , and Courtney L. Dixon , Appellate Staff; Hashim M. Mooppan and James M. Burnham , Deputy Assistant Attorneys General; Joseph H. Hunt , Assistant Attorney General; Civil Division, United States Department of Justice, Washington, D.C.; for Defendants-Appellants.

Dror Ladin (argued), Noor Zafar , Jonathan Hafetz , Hina Shamsi , and Omar C. Jadwat , American Civil Liberties Union Foundation, New York, New York; Cecillia D. Wang , American Civil Liberties Union Foundation, San Francisco, California; Mollie M. Lee and Christine P. Sun , 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 ClubEnvironmental Law Program, Oakland, California; for Plaintiffs-Appellees.

Douglas N. Letter (argued), Todd B. Tatelman , Megan Barbero , Josephine Morse , and Kristin A. Shapiro , United States House of Representatives, Washington, D.C.; Carter G. Phillips , Virginia A. Seitz , Joseph R. Guerra , and Christopher A. Eiswerth , Sidley Austin LLP, Washington, D.C.; for Amicus Curiae United States House of Representatives.

James F. Zahradka II (argued), Brian J. Bilford , Sparsh S. Khandeshi , Heather C. Leslie , Lee I. Sherman , and Janelle M. Smith , Deputy Attorneys General; Michael P. Cayaban , Christine Chuang , and Edward H. Ochoa , Supervising Deputy Attorneys General; Robert W. Byrne , Sally Magnani , and Michael L. Newman , Senior Assistant Attorneys General; Xavier Becerra , Attorney General; Attorney General's Office, Oakland, California; Jennie Lusk , Civil Rights Bureau Chief; Nicholas M. Sydow , Civil Appellate Chief; Tania Maestas , Chief Deputy Attorney General; Hector Balderas , Attorney General; Office of the Attorney General, Santa Fe, New Mexico; for Amici Curiae States of California and New Mexico.

Christopher J. Hajec , Immigration Reform Law Institute, Washington, D.C.; Lawrence J. Joseph , Washington, D.C.; for Amicus Curiae United States Representative Andy Barr.

John W. Howard , George R. Wentz Jr. , Richard Seamon , and D. Colton Boyles , Davillier Law Group LLC, Sandpoint, Idaho, for Amicus Curiae State of Arizona House of Representatives Federal Relations Committee.

Richard P. Hutchison , Landmark Legal Foundation, Kansas City, Missouri; Michael J. O'Neill and Matthew C. Forys , Landmark Legal Foundation, Leesburg, Virginia; for Amici Curiae Angel Families, Sabine Durden, Don Rosenberg, Brian McAnn, Judy Zeito, Maureen Mulroney, Maureen Laquerre, Dennis Bixby, and Advocates for Victims of Illegal Alien Crimes.

Douglas A. Winthrop , Arnold & Porter Kaye Scholer LLP, San Francisco, California; Irvin B. Nathan , Robert N. Weiner , Andrew T. Tutt , Kaitlin Konkel , and Samuel F. Callahan , Arnold & Porter Kaye Scholer LLP, Washington, D.C.; for Amici Curiae Former Members of Congress.

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. Steven A. Zalesin , Adeel A. Mangi , and Amir Badat , Patterson Belknap Webb & Tyler LLP, New York, New York, for Amici Curiae 75 Religious Organizations.

Harold Hongju Koh , Peter Gruber Rule of Law Clinic, Yale Law School, New Haven, Connecticut; Kathleen R. Hartnett , Boies Schiller Flexner LLP, San Francisco, California; Phillip Spector , Messing & Spector LLP, Baltimore, Maryland; for Amici Curiae Former United States Government Officials.

Samuel F. Daughety and Suzanne R. Schaeffer , Dentons US LLP, Washington, D.C.; Joshua O. Rees , Acting Attorney General, Tohono O'Odham Nation , Sells, Arizona; for Amicus Brief Tohono O'Odham Nation.

Dissent by Judge Collins.