Mr Zeichner said: “It is with great regret that I announce my resignation as Shadow Transport Minister. It has been an honour to serve and make a real difference especially in bus regulation.
“However my position on Europe has always been clear. I am a passionate pro-European and a straightforward politician.
“I promised the people of Cambridge I would stick to my principles and I would do right by our city - that means voting with my conscience and doing all I can to oppose the Tories’ extreme Brexit which would, in my opinion, damage our economy, our security and our society as a whole.
“I will continue to make this case, and the case for the many progressive, radical Labour policies in our manifesto to transform our society, from the backbenches.”
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