What Trump knew about the Nvidia spy

It's being dubbed the 'Nvidia affair' and it could be the script for a Hollywood thriller.

The head of US AI chip maker Nvidia, Jensen Huang has admitted to having an affair with a woman who US intelligence determined was a Chinese spy.

And President Donald Trump was told twice.

Today, New York Times journalist Julian E. Barnes, who helped break the story, on everything you need to know so far. 

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Julian E. Barnes, New York Times reporter on U.S. intelligence agencies and international security matters