Nvidia chief Jensen Huang resigns and agrees to appear before Congress

US intelligence believe he had an affair with a woman they suspect is a Chinese spy. We hear reaction from Silicon Valley, Wall Street, and the United States Congress.

Also in the programme: the EU’s top diplomat Kaja Kallas on why Europe should be involved in peace talks to bring about an end to Russia’s war on Ukraine. And we speak to the father of Democratic Party politician Scott Colom, who’s made history by being elected Mississippi's first black senator since the 19th century.