Even before Zohran Mamdani was elected as New York’s first Muslim mayor, his critics frequently cited London as a sort of cautionary tale, suggesting that New York under Mamdani could go “the way of London.” That’s because London already has a liberal, Muslim mayor - Sadiq Khan. But is that where the similarities end?

We talk to Tim Donovan, a former BBC reporter who covered London politics for decades. And we ask Mr Khan himself what it’s like to be a local politician with an international profile - especially when your most persistent critic, is a tenacious man called Donald Trump?

Mix: Travis Evans

Senior news editor: China Collins