Nvidia's board has hired prominent US law firm Wachtell, Lipton, Rosen & Katz to conduct an independent investigation involving CEO Jensen Huang. The probe, launched on November 8, will be led by former acting US Attorney for Manhattan Joon H. Kim, with no timeline set for its completion. Meanwhile, three Republican committee chairs in Congress have asked Huang to attend a closed-door briefing on November 18, a day after Nvidia's earnings, and respond by November 11. President Donald Trump has also said the FBI is looking into the matter.