Senator Elizabeth Warren, the Ranking Member of the U.S. Senate Committee on Banking, Housing and Urban Affairs, together with Senator Sheldon Whitehouse and Congresswoman Maxine Waters, sent a letter to Treasury Secretary Scott Bessent questioning whether Elon Musk influenced the Treasury Department’s decision to scale back key requirements under the bipartisan Corporate Transparency Act (CTA). The letter focuses on Treasury’s March 2025 interim final rule that removed the requirement for U.S. companies and U.S. persons to report beneficial ownership information to the Financial Crimes Enforcement Network (FinCEN). The lawmakers cite new reporting that Mr. Musk uses a network of dozens of secretive companies that could fall within the CTA’s transparency regime and argue it would be troubling if he intervened to limit the law’s application. They also point to examples and warnings cited across government and international sources that shell companies and opaque corporate structures in the United States are used by criminals and foreign adversaries, including drug trafficking organizations, Iranian sanctions evaders, and actors linked to China, and note opposition from law enforcement groups to weakening the CTA. The letter requests detailed information on Mr. Musk’s involvement in Treasury’s efforts to suspend CTA enforcement by April 13, 2026.