Does Donald Trump want to stay in Nato; and what's the point of the Turner Prize if everyone wins?

Nato is celebrating its 70th anniversary with a summit in Watford, but after all these years, are the threads of the alliance starting to fray? Donald Trump's cancelled a press conference after Canada's PM Justin Trudeau was caught on camera apparently gossiping about the US President. France is asking questions about America's commitment. The Leader Podcast speaks to the Evening Standard's US correspondent David Gardner.Also, Arts Correspondent Robert Dex speaks to the Leader after the Turner Prize was given to everyone on the shortlist. Lawrence Abu Hamdan, Helen Cammock, Oscar Murillo and Tai Shani formed a collective at the ceremony in Margate. Has the competition that likes to shock gone too far? Hosted on Acast. See acast.com/privacy for more information.