Klobuchar, Cruz and Thune Ready Bipartisan AI Safety Bill Targeting Bio and Nuclear Catastrophic Risks

Senators Amy Klobuchar (D-Minn.), Ted Cruz (R-Texas) and Majority Leader John Thune are preparing a bipartisan AI safety bill that could be introduced as early as next week, focused on 'commonsense guardrails' for 'catastrophic risks involving biological or nuclear threats.' Draft text hasn't been released but AI frontier labs and advocacy groups are already lobbying Hill staffers, and sources describe it as the only viable AI safety measure with a chance of passage before 2027. Klobuchar said 'it's clear we need to act now and not wait,' following recent warnings from a departing Anthropic researcher.