Nvidia: Senate summons Jensen Huang and Lutnick, Trump pushes Tim Cook

The U.S. Senate has summoned Nvidia CEO Jensen Huang and Commerce Secretary Howard Lutnick to testify, threatening subpoenas if they fail to appear, while President Trump has reportedly floated Apple CEO Tim Cook as a possible leader of Nvidia. The standoff centers on Nvidia, the dominant supplier of AI chips, and the Commerce Department's export-control role, making the hearing a key test of how Washington oversees the semiconductor giant. The article does not specify hearing dates, the exact scope of testimony, or any financial figures such as Nvidia's market capitalization or chip shipment volumes. Investors should watch whether the subpoena threat escalates into formal proceedings, what Huang and Lutnick say about export restrictions, and whether the Cook speculation gains traction as a succession signal at Nvidia.