LONDON, ENGLAND - JUNE 14: Jeremy Corbyn MP, leader of the Labour Party, is joined by members of the party's shadow cabinet at a Labour In for Britain event at the TUC Congress Hall on June 14, 2016 in London, England. Labour In for Britain are campaigning for the United Kingdom to remain a member of the European Union in a referendum being held on June 23, 2016. (Photo by Rob Stothard/Getty Images)
