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Which BigLaw firms and big-name lawyers are involved in suits against Trump administration?

By Debra Cassens Weiss

February 26, 2025, 9:40 am CST

Several BigLaw firms and at least three U.S. Supreme Court practitioners are representing plaintiffs suing the Trump administration.

Well-known attorneys involved in the litigation include Neal Katyal, who recently joined Milbank from Hogan Lovells; Seth Waxman of Wilmer Cutler Pickering Hale and Dorr; and Paul Clement, who left Kirkland & Ellis to form Clement & Murphy, report Law.com and Reuters.

The three lawyers have significant Supreme court experience. Waxman and Clement are former U.S. solicitors general, while Katyal was an acting solicitor general.

Smaller law firms and legal organizations are also involved in the litigation, including the American Civil Liberties Union, its foundation and its affiliates; Lambda Legal; Democracy Forward; Citizens for Responsibility and Ethics in Washington; the National Security Counselors firm; Lawyers for Civil Rights; and immigrant rights groups. Democratic state attorneys general are also filing legal challenges.

According to Law.com and Reuters, these BigLaw firms are involved in lawsuits:

  • Wilmer Cutler Pickering Hale and Dorr, representing fired inspectors general. (Law.com)

  • Hogan Lovells, seeking to block executive orders to end federal funding for gender-affirming medical care. (Law.com)

  • Jenner & Block, also seeking to block the orders on gender-affirming care and cuts to medical research funding. (Law.com, Reuters)

  • Ropes & Gray, also seeking to block cuts to medical research funding. (Law.com)

  • Gibson, Dunn & Crutcher, representing the Amica Center for Immigrants Rights and others seeking to block funding cuts for immigrant legal services. (Law.com)

  • Arnold & Porter Kaye Scholer, representing the ABA and other groups challenging a freeze on foreign assistance funding. The firm also sued over the order ending birthright citizenship. (Law.com, ABAJournal.com, Reuters)

  • Perkins Coie, representing transgender service members challenging an order restricting military service. (Law.com, Reuters)

  • Milbank, representing the chair of the Merit Systems Protection Board in a suit over her attempted ouster. (Reuters)

Just Security and the Civil Rights Litigation Clearinghouse are tracking legal challenges to Trump administration actions.

See also:

Which law firms are expected to win influence in Trump administration?

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