D. John Sauer

Dean John Sauer (; born November 13, 1974) is an American lawyer who has served as the solicitor general of the United States since 2025. He previously served as solicitor general of Missouri from 2017 to 2023. In 2024, he represented Donald Trump in Trump v. United States.

As solicitor general of the United States, Sauer argued in front of the Supreme Court to limit birthright citizenship, and to include the Department of Government Efficiency as a "presidential advisory body" within the Executive Office of the President.