We've been following the story of how a now disgraced financier, Lex Greensill, worked his way into the upper echelons of David Cameron's government. Today we explore Greensill's collapse and how it involved their biggest client, metal magnate Sanjeev Gupta and his business empire.This podcast was brought to you thanks to the support of readers of The Times and The Sunday Times. Subscribe today and get one month free at: thetimes.co.uk/storiesofourtimes.The full series - ‘Cameron and the toxic banker’ - is available to download and listen to all in one place, here.Guest: John Collingridge, Deputy business editor at The Sunday Times.Host: David Aaronovitch.Clips used: Channel 4 News, GFG Alliance. See acast.com/privacy for privacy and opt-out information.