Jensen Huang resigned as Nvidia's chief executive on Thursday, after confirming an affair with a woman alleged to be a Chinese spy — and the consequences for the company run far deeper than a leadership change. Nvidia shares fell roughly 5% in afternoon trading, extending double-digit losses accumulated since the scandal broke days earlier.

Huang's downfall carries unusual weight because Nvidia controls about 90% of the advanced chip market used for artificial intelligence, according to The New York Times. That position placed Huang and his silicon at the center of the U.S. AI arms race with China. Remove the founder, and Nvidia loses more than a famous face.

What exactly happened?

Reports now suggest Huang also had at least two other affairs with Nvidia employees, beyond the relationship at the center of the scandal. Government officials have confirmed national security concerns stemming from the affair, meaning the story has moved beyond corporate governance into questions of espionage.

The political dimension is already escalating. President Donald Trump, who reportedly knew about the situation, has denied those reports while defending Huang for doing a "fantastic job." Whether the administration acted on what it knew is now an open question in Congress.

"Congress must demand answers from Mr. Huang and others at Nvidia about how they may have put U.S. national security at risk," Democratic leader Senator Chuck Schumer posted on X on Thursday. He pressed further: "Were government officials told not to investigate because of Trump's relationship with Mr. Huang? What did Trump know when he personally invited Mr. Huang aboard Air Force One?"

Why does one executive matter so much?

The obvious answer — charisma and media profile — is the least of it. Huang co-founded Nvidia and remains its largest individual shareholder, giving him financial gravity at the company regardless of title.

His strategic value runs through Asia. Huang maintained close personal and business ties with semiconductor maker TSMC and its founder Morris Chang, relationships that helped build Nvidia's massive supply chain pipeline. No successor inherits that network by default; it was built on decades of personal trust.

Venture capitalist Sarah Guo put it starkly on X: "Sadly, greatness doesn't guarantee goodness. It's disappointing. The Economist says 'no one is irreplaceable.' They are very wrong." That claim is debatable — but it captures the market's evident fear, given the sustained share price decline.

What does this change for Silicon Valley's Washington position?

The timing compounds the damage. Huang's departure arrives immediately after the Democratic party's "blue tsunami" sweep into Congress in last week's midterm elections, which ushers in a new era for Silicon Valley. The industry's warm relationship with Washington's Republicans now faces an abrupt and likely end.

A Democratic Congress armed with subpoena power, and a national security scandal involving America's most valuable AI company, is a combination that invites hearings. Schumer's statement suggests they are a question of when, not whether.

What Nvidia loses, concretely:

• Its founder-CEO and largest individual shareholder at the moment of his resignation
• Personal supply chain relationships in Asia, notably with TSMC and Morris Chang
• A direct channel to a U.S. president who publicly praised him
• Market confidence, reflected in sustained double-digit losses plus Thursday's further 5% drop

What is still unknown?

The company has not detailed succession arrangements beyond the announcement itself, nor said who will manage the Asia relationships Huang personally maintained. Trump's precise knowledge and the timeline of any administration response remain contested. Whether the alleged espionage angle produces charges, or only hearings, is unresolved.

For a company controlling 90% of the chips powering the global AI buildout, those gaps matter. Nvidia's technology did not walk out the door with Huang. The relationships, the political cover, and a measure of investor certainty did.