US Senator Murphy Calls AI an ‘Existential Threat,’ Pushes Liability Bill With Possible Jail Time

On October 27, US Senator Chris Murphy, a Democrat, sharply escalated his rhetoric on artificial intelligence, calling it an “existential threat” and urging Congress to move quickly on tough accountability rules. In a newly released statement, Murphy highlighted his bipartisan proposal, the AI Agent Accountability Act, which targets advanced AI agents that can act autonomously on behalf of users or companies.

The bill would impose a clear legal duty of care on developers and operators of such systems. If a powerful AI agent goes “rogue” and causes serious harm, companies could face steep fines—and, in extreme cases, responsible executives could face criminal liability and potential jail time. The approach marks a shift from the largely voluntary safety commitments that have dominated AI governance in the US to date.

Tech firms and some Republicans argue the plan overshoots, warning that heavy‑handed regulation could slow innovation and weaken America’s position against rivals like China. Murphy, however, has signaled that Democrats intend to make AI oversight a central campaign issue heading into the 2026 midterm elections. The clash sets the stage for a high‑stakes debate over how far federal lawmakers should go in constraining fast‑moving AI technologies.