Luckin enjoys extra strong backing for Trump-resistant IPO

US president Donald Trump caused turmoil in global financial markets this week, after threatening to ramp up tariffs on Chinese goods. But although Trump stirred up trouble, Chinese start-up Luckin Coffee was not put off from brewing a US IPO. With heavy-hitting institutional investors already piling in to the offering, the company looks on track to raise more than half a billion dollars. Jonathan Breen reports.