When Johnson walks into Number 10, Downing Street this week, he will be tasked with persuading the European Union to revive talks on a withdrawal deal. If that fails, he says he's ready to lead Britain out of the bloc without a deal on the 31st of October.
But Brexit is not Johnson's only challenge. The prime minister has to deal with an escalating standoff with Iran over its seizure of a UK tanker in the Strait of Hormuz. And his critics will be watching very closely how he handles the so-called 'special relationship' with the US.
Donald Trump has backed Johnson to become the UK's prime minister. So, how will he deliver on Brexit and the many other challenges ahead?
Presenter: Divya Gopalan | Guests Catherine McBride, senior economist at Institute for Economic Affairs; Markus Becker, Europe correspondent for the German news magazine ‘Der Spiegel’. Owen Jones, political commentator, and columnist at the British newspaper ‘The Guardian’