Theresa May has reiterated during the General Election campaign that she is the only leader ready to negotiate a good Brexit deal with Brussels.
Robin Walker, a junior government minister in the Department for Exiting the European Union told express.co.uk how detrimental it could be to the UK if Mr Corbyn is elected in the June 8 vote.
Mr Walker, who is running for reelection in Worcester, claimed that no-one knows where the Labour Party leader stands on Brexit, which would be potentially damaging.
He said: “To be honest nobody knows where Jeremy Corbyn stands on this issue, he is someone who for most of his career, before becoming Labour leader was strongly against UK membership of the EU.
The Brexit minister claimed the EU would think they could walk over Jeremy Corbyn
“Then when he became Labour leader he went completely silent on the issue. He was absent for the referendum campaign.
“Ever since the referendum campaign, he has been enormously unclear on whether he wants the UK to have any greater control over its borders, whether he wants the UK to have any great control of its laws.
“He would go into the negotiating chamber effectively naked and saying that any deal would be better than no deal he would be handling all the power to the other side of the negotiations.
“What we have to have is a Prime Minister and chief negotiator in these upcoming talks who is going to stand up for us, who is going to fight our corner and get the right deal for Britain.”
Mrs May told a rally of Conservative supporters in Stoke-on-Trent how critical the vote is on Thursday to ensure a strong position in Brexit talks.
She said: “It is about who has the leadership to take us through those Brexit negotiations and build a stronger future for our country.
“I believe absolutely passionately that we can build a Britain that is stronger, fairer and more prosperous than it is today.
“The opportunities before us are enormous, the promise of Brexit is great. But we do have to make sure that we get those Brexit negotiations right and we get the best deal for Britain in Europe.”
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I think that they would think that they could walk all over us in negotiations
The Brexit minister claimed that the European Union would “walk over” Mr Corbyn in talks if was elected Prime Minister.
He added: “What we now need to do is get into the detail of those negotiations.
“I think because [Theresa May] has been to Brussels before, she has negotiated, in the British national interest before, Theresa is a respected negotiator in that sense.
“I think if anyone else were to be going from the UK perspective, anyone like Jeremy Corbyn for instance, I think that respect would be absent.
“I think that they would think that they could walk all over us in negotiations.”
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Mr Walker backed Mrs May’s tough approach to negotiations, adding that the Prime Minister's statement that “no deal is better than a bad deal”, must be true.
“It has to be,” he said. “What we have to ensure is that we can secure the best deal for Britain out of these negotiations, and therefore we cannot go into the negotiating chamber as Jeremy Corbyn and some others are suggesting that we will do anything to get a deal, that we will pay anything to secure a deal.”
YouGov’s election model predicts that the Conservatives will fall short of an overall majority by 21 seats in the General Election.
Its latest projection found that the Tories would get 310 seats on Thursday, June 8, below the 326 needed for a majority government.