It means that if her 'deal' is defeated, she will have to come to parliament with a Plan B in 3 days:-
The vote is this afternoon. So write to, facebook, tweet your MP NOW. This is what I have sent to mine, Sir Keir Starmer:
Dear Sir Keir,
Thank you for supporting Yvette Cooper's amendment. I trust that you and all Labour MPs will now be supporting Dominic Grieve's amendment to ensure that Theresa May is not allowed to waste any more time or money if her 'deal' is voted down.
I also trust that any Labour MP who decides to back this incompetent and discredited government will face severe disciplinary action.
btw why weren't you doing this morning's interview on the 'Today' programme? Barry Gardiner always comes over as completely evasive and must lose dozens of votes for Labour every time he opens his mouth.