The EU is loathe to let treaties fail, given the sunk costs of negotiating them, but it may walk away if Johnson doesn't change his tune.
The Conservatives need to think beyond Theresa May, and consider once again what it is to be a conservative.
Years after voting to leave the EU, the UK still has no clear plan of how to make Brexit work. These five articles chart the history of an intractable problem.
The UK has until October 31 to get its house in order.
Members of the European Research Group are right to compare themselves to ancient Spartan warriors. Behind their combative stance, they seem to have no plan for when the Brexit war is over.
The Labour leader doesn't really want another referendum, he wants an election – and striking a deal with the prime minister makes one less likely.
American companies still face enormous uncertainty about how they'll be doing business in the UK and EU in the coming years, particularly as the April 12 Brexit deadline draws closer.
After the initial relief that the party leaders were working together comes the realisation that they both risk splitting their parties if they strike a deal.
It's easy, now, to think of this as Theresa May's story – but Thatcher, Blair and Cameron all played their part.
One wrong turn after another has left the British prime minister cornered.
After a full day with her top team, the prime minister says she wants to thrash out a deal that both she and the opposition can live with.
MPs were never expected to produce a concrete decision in their first round of indicative votes. There is some material to work with now.
How parliament and executive came to be locked in their Brexit impasse.
Northern Ireland and Scotland don't seem to have heard the rallying cry, despite being more Remain than England.
E-petitions are an important democratic tool but they need to be part of something bigger to really change things.
Decades of consensus building have enabled the EU27 to show remarkable resilience and flexibility, despite chaos on the UK side
The prime minister was wrong to absolve herself of blame for this crisis, but a solution can only be found if parliamentarians work together.
Just a week after her government said seeking a short extension would be a wrong move, the prime minister has folded.
It looks like the prime minister will try for a third vote on her deal before asking the EU for a Brexit delay.
Even if the UK decides it can withdraw from the Irish backstop unilaterally under international law, there will be consequences.