This is the most important Brexit week since article 50. All MPs – Tories included – must back the Lords’ amendments to the withdrawal bill
• Keir Starmer is a Labour MP and shadow secretary of state for exiting the EU
Theresa May has just faced yet another torrid period of Tory revolts over her Brexit strategy. David Davis was on the verge of resignation. Government MPs were publicly rejecting her customs backstop fudge. And Boris Johnson became so exasperated that he was telling his supporters that he wanted Donald Trump to take over the negotiations.