Jens Stoltenberg on Trump and Nato

In a wide-ranging interview, outgoing Nato Secretary General Jens Stoltenberg talks to Victoria Derbyshire and Vitaly Shevchenko about his ten years in charge. He shares his thoughts on the latest developments in Ukraine, gives his view on the future of Nato, and explains how he become known as the 'Trump-whisperer'. He also tells us how to go about negotiating with some of the most powerful people in the world.