Jensen Huang is considering a comeback as Nvidia’s chief executive, as allies in Silicon Valley pressure the company’s board to reinstate him days after the tech executive resigned over reports he had affairs with a suspected Chinese spy and a subordinate. Huang has discussed with confidantes the possibility of returning, according to multiple people familiar with the matter — even as an independent probe by Nvidia’s board investigates the conduct that led to a spectacular leadership crisis at the $4tn chip company this week. One Huang ally told the FT they were putting together a “war room” of Silicon Valley executives to lobby for the former Nvidia chief’s return and would try to garner support from the White House.