The Labour leader has cautiously backed a fresh vote – and that's all parliament needs to get the debate going.
The shadow foreign secretary's attack on departing Labour MPs is out of step with public feeling.
Quitting Labour and Conservative MPs need to decide where to position themselves if they want to keep their seats. Even then, it's going to be a slog.
Here's what needs to happen if the UK's newest political formation wants to stand in elections as a party.
It doesn't matter that this new formation doesn't have a policy. The very act of striking out alone is a powerful message about the broken system that has landed the UK in this mess.
The media has a role to play in explaining what Brexit really means to ordinary people, but it's getting lost in the politics – and time's running out.
A group of MPs has cited Brexit, anti-semitism and Corbynism more broadly as motivations to leave.
The Labour split may cause electoral problems, but it could also prompt fresh thinking.
Corbyn says he won't talk to the prime minister until she takes no-deal Brexit off the table. But will his gamble deliver the election he wants?
The Labour leader insists he wants 'no-deal Brexit' off the table before sitting down with the prime minister. But that's not the full picture.
While many staunch Conservatives would see Norway-plus as a 'betrayal', everyone else could probably live with it – unless and until they realise it won't put a stop to free movement.
Hundreds have died in a government crackdown in the Central American country, and Labour's reaction is worrying.
We can't agree what the 'will of the people' was in 2016, but these are the representatives they elected in 2017.
Theresa May's Brexit plan has crumbled on contact with the reality of UK and EU politics.
Theresa May still faces a huge hurdle to get MPs in Westminster to agree to the Brexit deal.
Momentum's position is increasingly out of step with the Labour leadership's on this issue.
Constructive ambiguity on the biggest issue of the day works in opposition, but Labour wants to be in government before long.
The brain drain is coming – it has to be stopped.
The party will eventually have to look beyond economic growth.
If the UK does secure a deal with the EU, it's not clear that parliament would back it. Here are some scenarios for what could happen next.