'It sends chills down my spine': Christiane Amanpour on chances of a US nuclear strike against Iran

With Americans heading to the polls for the US midterms, Andrew Marr is joined by Chief International Anchor at CNN Christiane Amanpour and Sir John Sawers, former Chief of the Secret Intelligence Service, to assess the Republican chances, the international climate, and how Trump may respond to the results. #andrewmarr #christianeamanpour #LBC #usa #donaldtrump