1. United States
2. Calif.
3. Letter

I am writing to request that you initiate and publicly support a congressional investigation through the House Judiciary Committee, the House Committee on Oversight and Accountability, and the Senate Judiciary Committee into whether commercial data analytics platforms were used to collect, retain, or correlate information on constitutionally protected protest activity connected to U.S. Immigration and Customs Enforcement. Recent reporting by CNN has raised serious public concern about the role of advanced data systems in domestic enforcement contexts and the potential erosion of First Amendment protections. While members of the public may not have access to classified or technical documentation, Congress does. That authority exists precisely to test whether government practices align with constitutional limits. I urge you to examine whether systems developed or operated by Palantir Technologies were used, directly or indirectly, to identify protesters, map social or associational networks, retain protest-related data, or link lawful protest activity to immigration enforcement actions. This inquiry should include a review of contract scopes and task orders, data sources, retention and deletion policies, interagency data-sharing arrangements, and any safeguards intended to prevent monitoring of lawful speech and assembly. This request is not partisan. The use of powerful data integration and pattern-analysis tools by the federal government presents real civil liberties risks regardless of administration. Congress has a responsibility to ensure that technological capability does not quietly outrun legal authority or constitutional restraint. If these systems are being used in ways that chill speech or assembly, corrective action is required. If they are not, Congress should establish that conclusion clearly and transparently. I respectfully ask that you formally request an investigation by the relevant committees and that you be public about your support for this inquiry. Transparency and oversight are essential to maintaining public trust, particularly where surveillance technologies intersect with protected political activity. Thank you for your attention to this matter. I look forward to your response and to your leadership in upholding constitutional protections. Sincerely,