Theresa May will meet with her Cabinet today to reportedly discuss ramping up no-deal preparations with little more than 100 days to go to Brexit, having effectively dared Jeremy Corbyn to try to bring down her Government.
Downing Street accused the Labour leader of a political "stunt" after he tabled a long-threatened but non-binding motion of no confidence in the Prime Minister, demanding she hold a meaningful vote on the Withdrawal Agreement before Christmas.
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But the Labour leader stopped short of bringing a motion of no confidence in the Government under the Fixed-term Parliaments Act (FTPA) which, if the opposition won, could trigger a General Election.
Mrs May looked likely to win a vote after Brexiteer critics in her own party and the DUP said they would back her.
But the Government would also have to allow Commons time for the confidence vote to take place this week and a Downing Street source challenged Labour to strengthen its attack.
They said: "We won't allow time for what is a stunt.”
No confidence motion
Watch: Jeremy Corbyn calls for a motion of no confidence in Theresa May. Video: Parliament TV
The wording of Mr Corbyn's motion, targeted at Mrs May rather than the Government as a whole, would not trigger the process set out under the Fixed-term Parliaments Act which could eventually lead to a general election.
But Labour said it was clearly a confidence motion and should be allocated time for debate by the Government.
- Read more: Labour to table motion of no confidence in Theresa May
- Read more: Brexit deal vote to be held in January, Theresa May says
However, Labour MP Chris Williamson told talkRADIO that he did not think Labour would “win” such a motion.
A House of Commons spokesman said: "By established convention the Government always accedes to the demand from the Leader of the Opposition to allot a day for the discussion of a motion tabled by the official Opposition which, in the Government's view, would have the effect of testing the confidence of the House.
"It will be for the Government to determine whether to schedule time for debate on this."
After Downing Street said it would not allow time for a vote on the PM, Labour Party chairman Ian Lavery accused Theresa May of "running scared of Jeremy Corbyn's no confidence vote, just as she's running scared of the vote on her flawed Brexit deal".