Jeremy Corbyn took on the big banks again this week. Morgan Stanley cautioned investors this week that political uncertainty in Britain was a bigger threat than Brexit given the risk of Corbyn winning power and then dismantling what was once seen as one of the world’s most stable free-market economies. "Bankers like Morgan Stanley should not run our country but they think they do," the Labour leader said. One senior executive at a top US investment bank said that at a meeting in New York recently concerns over Corbyn trumped concerns about Brexit. "Their top concern was not what’s happening in Germany and Spain or North Korea and Trump: their main concern was what’s happening in the UK and what Corbyn might mean for the country," the executive.