The House of Lords have inflicted two defeats on the Government’s Article 50 Bill, one requiring the Govt. to recognise the rights of EU citizen residents in the UK, and the second mandating that Parliament have a meaningful vote after the negotiations are complete. The Government plan to reverse these measures in the Commons, which one assumes they will succeed although 12 Tories voted with the Lords majority, so some more Tory MPs may gather courage. Even if the Commons reaffirms its will as already stated, if the Lords stand firm, the Bill falls and will have to be re-introduced (and passed) in the next parliamentary session. The time table, if not the whole project would be fucked.
Parliament Act