Most Leave voters would rather lose Northern Ireland than drop Brexit, reflecting a longstanding indifference.
It has been a confusing few weeks on the Tory benches. Here's how to understand the dispute between Brexit rebels and the PM.
The government has avoided defeat on its key piece of Brexit legislation – but for how long?
A tale of two 'backstop options' for Northern Ireland after Brexit.
A deal with Europe would offer freedom, but some key sectors wouldn't be included.
The international partnership offers new trade opportunities for the UK but some of its members also stand to lose out as a result of leaving the EU.
Research into cognitive processes found people who adapted their thinking to changing situations were more likely
Three important aspects of international trade deals will limit the UK's democratic control over trade.
Tensions with Russia and the US have made both partners in the Brexit negotiations more aware of their shared interests than they seemed to be a year ago.
The EU faces three key challenges over Brexit: avoiding a no-deal scenario, managing the ticking negotiation clock and ensuring its own unity.
Transition isn't leaving, nor is it staying. And some key questions remain unanswered.
The UK will continue to abide by several important EU rules during a 21-month Brexit transition period.
The EU has ruled out any cherry picking from the UK for things like single market access for financial services.
Other EU countries have flexible legal arrangements for their own special territories – something similar for Northern Ireland is not impossible.
A conciliatory tone from the prime minister but Boris Johnson and Michael Gove continue to cause problems.
The Labour leader's vision for a customs union after Brexit is even more optimistic than the one being proposed by Theresa May.
Brexit supporters claim the absence of major repercussions so far is evidence that Brexit is a success. But the UK hasn't left yet.
Unless the UK can strike a deal quickly, British water will no longer be recognised on the coveted European list of recognised mineral sources.
The prime minister conceded that the UK must continue to abide by European Court of Justice rulings, even after Brexit.
Nissan might have promised post-Brexit investment, but leaving the single market and customs union could change everything for the UK.