ISLEWORTH, UNITED KINGDOM - SEPTEMBER 14: In this handout image provided by Sky News, Labour leader Jeremy Corbyn (L) and Labour leader candidate Owen Smith take part in a televised hustings ahead of the Labour leadership election on September 14, 2016 in Isleworth, United Kingdom. The current Labour Leader Jeremy Corbyn took part in the final head-to-head hustings debate with rival Owen Smith. The debate aired on Sky News and was moderated by Political Editor Faisal Islam. The new leader will be announced at the forthcoming Labour Conference in Liverpool. (Photo by Sky News via Getty Images)