Congressional efforts on comprehensive federal AI safety legislation have produced multiple discussion drafts and frameworks in 2026, including recent proposals from Sens. Maria Cantwell and Mark Warner focused on NIST standards, testing requirements, and risk evaluation for frontier models, yet none have advanced to enactment. Partisan divisions, procedural delays, and a compressed post-midterm session calendar have prevented committee markups or floor votes on major bills such as the FRONTIER Act or AI Risk Evaluation Act. An earlier executive order established voluntary review processes, but binding statutory measures remain stalled in committee. Traders reflect this limited legislative window before 2027 by assigning overwhelming probability against enactment.