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Speaker John Bercow has blocked a bid to choke off government cash if the next Prime Minister pushes for a no deal Brexit .

A cross-party group of MPs were planning to add an amendment blocking no deal to an ‘estimates’ motion - which provides cash to government departments.

The move would have stopped the Government being able to spend cash if it pushed for a no deal Brexit .

But amendments must be selected by the Commons Speaker before they can be debated and face a vote.

(Image: JESSICA TAYLOR/UK PARLIAMENT/HANDOUT/EPA-EFE/REX)

Speaker Bercow announced this afternoon that no amendments had been selected for today’s estimates motion.

The same amendment is also tabled to two further estimates motions on the Department for Work and Pensions and the Ministry of Housing, Communities and Local Government on Tuesday, with a decision on whether they can be voted upon expected before Tuesday's debates.

Boris Johnson has warned he would ensure Brexit happens "do or die" on October 31 if he's selected as the next Prime minister.

And he has suggested he could simply ignore MPs who vote against No Deal to ram through his plan anyway.

That has sparked warnings of a full no-confidence vote in the government - backed by up to a dozen Tory MPs.