US lawmakers renew push to tighten China AI chip rules after Nvidia CEO allegations

US lawmakers renewed calls for tighter restrictions on China's access to advanced AI chips on Tuesday, following allegations about Nvidia CEO Jensen Huang's ties to a Chinese spy. The push intensifies scrutiny of the world's leading AI chipmaker and bolsters efforts to strengthen export controls. Senate Democratic Leader Chuck Schumer urged Congress to pass bills including the AI Overwatch Act, Chip Security Act, and Match Act to control chip exports and combat smuggling. House China Committee Chairman John Moolenaar said restrictions should be included in the annual military spending bill, while Schumer demanded a full accounting of President Trump's defense of Huang. Trump said the FBI is investigating the allegations and voiced support for Huang, a close ally since at least 2025. Nvidia stated its board has no reason to believe national security or company secrets were compromised, though its inquiry will examine all available information.