Newsweek reports that Jensen Huang's resignation as Nvidia's chief executive, after revelations about extramarital relationships including one with a Chinese businesswoman suspected of spying for Beijing, has put Commerce Secretary Howard Lutnick under mounting pressure over his department's handling of AI chip exports to China. Senator Tim Scott has called Huang and Lutnick to testify, Nvidia shares fell about 6.3 percent over two days, Reuters reports White House officials discussed pushing Lutnick out, and President Trump — who endorsed Tim Cook for the Nvidia job — says he maintains complete confidence in his commerce secretary.