CAMBRIDGE, ENGLAND - SEPTEMBER 06:  Jeremy Corbyn, MP for Islington North and candidate in the Labour Party leadership election, is greeted by supporters on September 6, 2015 in Cambridge, England.  Mr Corbyn spoke to an audience of over 1,200 people as candidates continue to campaign for the leadership of the Labour Party, the results of which are due to be announced on September 12.  (Photo by Rob Stothard/Getty Images)