US lawmakers push tougher AI chip export curbs on China after Nvidia scandal

US lawmakers are accelerating efforts to restrict advanced AI chip exports to China following a scandal involving Nvidia founder Jensen Huang, with new bipartisan bills seeking greater congressional oversight of sensitive technology sales. The proposed legislation would tighten export rules and allow Congress to review or block chip deals already approved by the Trump administration. The controversy centers on Singapore-based Megaspeed, suspected of smuggling Nvidia chips to China, and has intensified scrutiny of existing export controls. Lawmakers are considering attaching the measures to the must-pass National Defense Authorization Act, boosting their chances of enactment. The push follows Huang's resignation over extramarital affairs, including with a Megaspeed executive suspected of Chinese intelligence links.