What the sources add
Spy chief Ken McCallum said Kremlin had attempted to influence 2016 vote through social media and TV reports Russia did try to interfere in the Brexit referendum through social media and television reports, the head of MI5 said on Tuesday, but he added that did not mean the Kremlin had any impact on the result. Ken McCallum endorsed comments by Andy Burnham , who raised the issue over the past two days, though he sa…

