Why is Nvidia’s Jensen Huang at the centre of a US-China row?

Donald Trump praised the chipmaker’s CEO despite reports he had an affair with a suspected Chinese spy

Nvidia has launched an investigation into allegations that its chief executive, Jensen Huang, has been the target of a Chinese espionage operation.

Huang has admitted to having an affair with a suspected Chinese spy who was reportedly central to the “foreign intelligence effort”.

Here are some of the key questions around the story, and its implications for US-China relations.