Jeremy Corbyn tonight announced he will back a second Brexit referendum which could betray 17.4million Leave voters.



The leftie leader pledged to support moves for a "public vote to prevent a damaging Tory Brexit" - after months of dithering.



It is the first time Mr Corbyn has officially backed the idea of a referendum which could end up keeping us in the EU despite the result of the 2016 vote.



The Labour boss has been under increasing pressure from pro-Remain MPs and activists to support a so-called "people's vote", especially after nine MPs left last week - with eight of them joining the Independent Group.



But Brexiteers blasted him today for backing a vote which would disregard the result of the first referendum.



And the policy is still fudged - with no clarity on what form the referendum would actually take or when it would be.