The New York Times reported last week that Mr. Huang had a close relationship with an executive that U.S. officials determined was funneling information to Chinese intelligence.
A request for Jensen Huang, Nvidia’s chief executive, to speak represented a shift for Republican congressional leaders, who have largely taken a hands-off approach to the tech industry.
After two years of little A.I. oversight, voters on Tuesday rejected data center projects and swept into office Democratic candidates who promised to regulate the technology.
A Chinese businesswoman who had a close relationship with Jensen Huang was found to be passing intelligence to Beijing. President Trump was briefed and took no action.
Jensen Huang, the chief executive of Nvidia, is influential at the White House on technology policy and has developed a close relationship with President Trump.
The increase comes four months after the chip giant added $80 billion to its buyback program, bringing the total remaining authorized amount to $235 billion.
Jensen Huang, chief executive of Nvidia, has led the company as its stock price has skyrocketed amid the explosion in demand chips that are the centerpiece of giant A.I. data centers.
Mr. Trump called Jensen Huang, Nvidia’s chief executive, while Mr. Huang was onstage in Los Angeles and criticized calls to slow down and regulate A.I.
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