Letter Text (PDF)

Washington (November 20, 2025) - Senator Edward J. Markey (D-Mass.), member of the Commerce, Science, and Transportation Committee, the Environment and Public Works Committee, and the Health, Education, Labor and Pensions Committee, and Senator Elizabeth Warren (D-Mass.) today sent a “Dear Colleague” letter to Senate Democrats as Big Tech makes a last minute play to add an AI regulation moratorium to the National Defense Authorization Act (NDAA) for Fiscal Year 2026. In the letter, Senators Markey and Warren call on Senate Democrats to stand united and commit to opposing the NDAA if it includes the AI moratorium. Below is the full text of the letter.

Dear Democratic Colleague,

Big Tech is once again attempting to undermine states’ rights to regulate artificial intelligence (AI), this time by trying to sneak a last-minute provision into the National Defense Authorization Act (NDAA). If included, this provision would prevent states from responding to the urgent risks posed by rapidly deployed AI systems, putting our children, our workers, our grid, and our planet at risk. This provision was overwhelmingly defeated by a bipartisan 99-1 vote during the reconciliation fight this summer. President Donald Trump has now endorsed the policy proposal, siding with Big Tech and against states’ rights. Senate Democrats should stand united and commit to opposing the NDAA, which is likely to include a number of other poison pills, if it includes the AI moratorium.

As a massive, bipartisan coalition of governors, state attorneys general, state lawmakers, and advocates across the political spectrum made clear earlier this year, the Republican AI moratorium represents a serious threat to our ability to protect Americans from the harms of AI. It could block state policymakers from moving forward on basic, bipartisan protections, such as protecting children and teenagers online, combatting deepfakes, slowing electricity price hikes, addressing the environmental impacts of data center buildout, preventing algorithmic discrimination, or safeguarding workers from dangerous AI-fueled workplace technology. It would override the authority of states that are actively developing thoughtful, targeted AI safeguards for their residents. Given the rapid development of AI today and the repeated failure of Congress to pass tech regulations, the AI moratorium would be a massive giveaway to Big Tech and devastating defeat for Americans.

Democrats have direct control over whether the AI moratorium is enacted into law. Our message should be simple: Congress should not give Big Tech a multi-year holiday from state oversight. We respectfully urge you to join us in opposing any version of the NDAA that includes the AI moratorium.

Thank you for your work to protect Americans from the risks of AI.

Senator Markey has been a leading voice against the inclusion of a moratorium on state AI regulations.

  • On July 1, the U.S. Senate voted 99-1 in favor of an amendment led by Senator Markey, Senator Maria Cantwell (D-Wash.), and Senator Marsha Blackburn (R–Tenn.) to strip a ten-year moratorium on state AI regulations from the Republican budget reconciliation bill.
  • On June 30, Senator Markey introduced an amendment with Senator Cantwell to strip the entire provision prior to introducing the same amendment with Senator Cantwell and Senator Blackburn on July 1.
  • On June 10, Senator Markey announced his plans to file an amendment to the Senate reconciliation bill to block Republicans’ attempt to prevent states from regulating artificial intelligence (AI) for the next 10 years.
  • On June 4, Senator Markey convened a virtual roundtable with advocates to discuss the impacts this ban would have on communities across the country.
  • On June 3, Senator Markey delivered remarks on the Senate floor opposing the provision in the House-passed reconciliation bill that would prevent states from regulating AI for the next ten years.

Senator Markey is the author of the Artificial Intelligence (AI) Civil Rights Act, the most comprehensive AI civil rights legislation introduced in Congress. The legislation would put strict guardrails on companies’ use of algorithms for consequential decisions, ensure algorithms are tested before and after deployment, help eliminate and prevent bias, and renew Americans’ faith in the accuracy and fairness of complex algorithms.

Senator Markey is also the author of the Artificial Intelligence Environmental Impacts Act, which would develop standards to measure and report the full range of AI’s environmental impacts, as well as create a voluntary framework for AI developers to report environmental impacts.

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