Jeremy Corbyn had said he would prefer a general election over another public vote on EU membership.
The vote opens up clear division between the UK’s two main parties, the conservative minority government still committed to leaving.
Lawrence Lee reporting now from the Labour Party conference in Liverpool.
For the true believers in the current Labour Party, this is the must-have item at Conference.
Never mind that their leader Jeremy Corbyn has only a lukewarm relationship with the European Union, criticising it in the past as a capitalist club. Convincing him to defeat brexit is everything now.
The Labour Party is a democratic party, well, it’s becoming a more democratic party.
And I think that the leadership will accept the voice of the members.
That’s about democracy and actually the call for a new referendum on brexit is also about democracy.
Labour membership has boomed under a philosophy that says the wider the wealth gap in Britain, the harder you have to fight back.
Until now, this unrepentant socialism had maintained a deafening silence over brexit, but no longer.
Over the course of this week, the Labour Party has unveiled a whole set of eye catching, aggressively positioned policies in favour of redistributing wealth to working people.
Things like putting workers on company boards, renationalizing key services, that sort of thing.
And every single one of them could be achieved without the UK having to leave the European Union.
We’ll vote against her deal!
So Labour is now offering two things at once.
First to vote down any deal the government comes up with in Parliament’s.
On the ground that it will be economically damaging while simultaneously calling for a national election, or a new vote which could include a choice of not leaving Europe at all.
Gradually it seems the tide is turning.
We know already that the EU leaders would definitely extend the article 50 process if we were to have a vote on the deal or indeed general election.
They wouldn’t interfere in that democratic process and makers go over the line during that time.
So really that’s not a worry.
What we need to do is to make sure that we do have that option, so that it’s the people of this country having the final say and not just a few politicians.
Most Labour MPs who support brexit haven’t turned up this week.
They worry that a U-turn could alienate their own constituents who voted to leave.
This veteran looked suddenly like a stranger in his own party.
When 17.5 million people vote, we know that Cameron told you we’ll get a different result.
Well, the truth is they voted the other way and devoted to come out.
And I don’t think you can fly in the face of people, 70 percent in some constituencies voting to get out.
Brexit is so important yet so impossibly complicated.
Last week, there was no future but brexit, even if nobody knows what that entails.
Suddenly it appears a gap has emerged, brexit is by no means a certainty.