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Saturday’s sitting in the House of Commons, the first in 37 years, will see the Prime Minister try to deliver his Brexit agreement, which he agreed with the bloc earlier this week. Mr Johnson has repeatedly vowed to deliver Brexit by the end of this month, and will try to get his deal over the line on Saturday, as he tries to lure Labour MPs and former Tory MPs to back his agreement. But, a Brexit Party MEP has outlined what role his party will play if Mr Johnson’s deal gets enough votes from lawmakers.

Speaking to Express.co.uk, John Longworth, explained the two important things his party must continue to do, even if the Prime Minister secures his deal. The former director-general of the British Chambers of Commerce said: “I think the Brexit Party has an important role in doing two things, should the Prime Minister’s Brexit deal pass in the House of Commons. “One, is clearing out this usurper Parliament that we have got, full of people who are opposing the will of the people. “So at the next general election, getting rid of the Remainer MPs.”

Brexit Party's two key roles if Boris' Brexit deal passes in the Commons

John Longworth explained the Brexit Party's roles if the deal passes

He added: “The other important role the Brexit Party will play is holding the Government to account, whatever the Government is, to deliver a proper Brexit in those negotiations. “In principle, those negotiations will last a year, they could be extended another year. But, I think the Government would probably not want to do that if they can avoid it.” Mr Longworth also claimed it would be “chaos” if the Prime Minister doesn’t get the numbers he needs in the Commons on Saturday. He said: “If he doesn’t get the numbers, he is obliged to write a letter, asking for an extension. READ MORE: Brexit Super Saturday: What will happen? Everything you need to know

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One, is clearing out this usurper Parliament that we have got John Longworth

Boris Johnson is battling to get his deal over the line

Jeremy Corbyn has called for his MPs to vote against Boris' Brexit deal

The Prime Minister has been frantically trying to drum up support for his Brexit agreement with Parliamentarians set to vote on the deal on Saturday. Speaking on the eve of his vote, Mr Johnson called for MPs to deliver on what the British people voted for in the historic 2016 referendum. Asked whether his vote would pass, he said: ”Well, I very much hope so. And that's why I said what I said about what it could be like tomorrow evening, and I suppose what I would say to friends and colleagues in the House of Commons is: Look, you know, this has been a long, exhausting and quite divisive business, Brexit. "I think this will be the fourth time we've tried to get the House of Commons to approve something that was decided by the people in 2016, you know that this would be the second agreement we've done with the EU.

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"I think it's a great agreement, it takes us forward and that gets us out of the backstop, it gives us the freedoms that I have described. I hope that people will think well, you know, what's the balance, what do our constituents really want. "Do they want us to keep going with this argument, do they want more division and delay, or do they want us to focus on putting more money into the NHS which is what we're doing. Expanding a provision for education, lifting up provision for education and putting more police out on the streets tackling knife crime. Those are the priorities of my constituents and I think of everybody's constituents." Numbers in the House of Commons are expected to be extremely tight, and Government whips have been working to get the Prime Minister’s plan ratified and have calculated it will pass - if they can persuade enough Labour MPs, and the Tory rebels to back it. There are 650 MPs in Westminster. Of these, Sinn Fein’s seven members do not vote, and nor does Speaker John Bercow or his three deputies. Neither are the votes of the four vote tellers - two Conservative MPs in favour, two Labour MPs against - included in the overall result.

It is unclear if the whole of the ERG will back Boris' Brexit deal

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