This from 2013:
Ed Balls has been repeatedly dropping hints that he thinks a referendum is the right policy for us. Most recently, on Friday, Ed Balls said “I certainly don’t think we can ever afford to give the impression that we know better than the voting public.” This follows similar comments a few weeks before (also in the Yorkshire Post). Keith Vaz has been arguing for a referendum ‘now’ for months, and is feeling truly vindicated that so many others in the Party have come round to his position, because “we cannot afford to be painted as anti-democratic”.
Personally, as I speak to more and more Labour members, activists, candidates and those already elected, I see that there is a serious shift. People see the validity of the argument, and mostly think that ‘In’ will win any vote and, most importantly, understand that it is the symbolism of truly consulting the people that matters most. John Prescott saw that, and so he is calling for us to support an EU Referendum, and that is why he was Deputy Prime Minister in one of the greatest governments this country has ever had.
Dominic Moffit is Campaign Director of Labour for a Referendum
So, Cameron was promising what Labour wanted too and which Ed Miliband failed to deliver.
I still think it is a mistake.