We try to draw some wider lessons from the nightmare that the Brexit process has now become. What have we learned about the relationship between parliament and the executive? Is there any way that the Article 50 process could have worked? And what conclusions will other countries reach about how hard it is to leave the EU? Plus we talk about the recent report from the Hansard Society indicating that the British public is more open than ever to the idea of a 'strong leader'. With Helen Thompson and Kenneth Armstrong.
An extra episode as David and Helen try to work out where we've got to with Brexit after this week's votes in the Commons. Can Tory unity hold? Can EU unity hold? Something's got to give - but what? And when?