Senate Minority Leader Chuck Schumer (D-N.Y.) is not letting this one go. On Tuesday, he took to X to accuse President Donald Trump of sitting on a potential national security threat involving Nvidia Corp. (NVDA) CEO Jensen Huang.

The allegation, per Schumer: Trump was briefed more than a year ago about Huang's alleged intimate relationship with a Chinese intelligence operative and simply failed to act.

"Trump was briefed over A YEAR AGO on Nvidia's CEO having an affair with a Chinese spy. He did nothing about it," Schumer wrote.

He didn't stop there. Schumer also criticized Trump for taking Huang on his Beijing trip this spring, supporting the CEO's push to let Nvidia sell AI chips to China, and accepting a $25 million donation from the chipmaker.

In a video shared alongside the post, Schumer hammered the point home from the Senate floor.

"One of our most important companies, that's involved in national security, and the CEO might be having an affair with a Chinese spy?" he said. "And Trump did nothing about it? What a dereliction of duty."

"He's supposed to protect America, not China. Not his friends," Schumer added.

Trump Defends Nvidia CEO Amid China Spy Allegations

Trump, for his part, isn't backing away from Huang. On Sunday he described the Nvidia chief as an "honorable guy" and acknowledged speaking with him about the allegations.

According to a New York Times report, a 2025 U.S. intelligence briefing alleged that Alice Huang had developed a close relationship with the Nvidia CEO while illegally smuggling advanced AI chips to China.

Huang acknowledged being "unfaithful" to his wife in a message to Nvidia employees. Nvidia announced an investigation into the allegations over the weekend.

The company's board said it had no reason to believe national security or company secrets had been compromised, but launched an independent investigation to examine all available information. Huang has pledged to cooperate.

Adam Schiff Demands Congressional Investigation

Separately, Sen. Adam Schiff (D-Calif.) called for a thorough congressional investigation into the allegations, questioning Trump's support for AI chip exports to China and potential financial conflicts of interest.

Schiff alleged that Trump had invested millions of dollars of his personal fortune in Nvidia while allowing the company to sell advanced AI chips to China.

He also called on Congress to pass export controls to prevent the sale of sensitive chips to Beijing, saying Americans deserve answers about "what the President knew and when."

Meanwhile, market data ranks Nvidia in the 14th percentile for Momentum, while its Growth score stands in the 98th percentile.