Mark Coles profiles Rob Goldstone, the man at the centre of the Donald Trump junior/Russia saga. This week it emerged that Rob Goldstone fixed a meeting between Donald Trump junior and a Russian lawyer. Goldstone had reportedly sent an email to Trump junior before the meeting saying that the Russian lawyer could offer damaging information about Hillary Clinton - and that the material was part of a Russian government attempt to boost his father's presidential campaign. So how did this tabloid journalist turned music PR from Manchester gain access to the inner circle of the Trump family and the Russians?

Producers: Smita Patel and Kate Lamble.