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Theresa May is facing a full-blown cabinet coup after ministers reportedly branded her ‘toxic’ and ‘erratic’.

One minister told the Sunday Times the Prime Minister’s judgement had gone “haywire”.

Another said: “The end is nigh. She won’t be Prime Minister in 10 days time.

David Lidington, Mrs May’s deputy, and Michael Gove, the Environment Secretary are both thought to be lining up to replace her if she agrees to step down.

Tory MP George Freeman, Mrs May’s former policy advisor, tweeted: “I’m afraid it’s all over for the PM.

“She’s done her best. But across the country you can see the anger.

“Everyone feels betrayed. Government’s gridlocked. Trust in democracy collapsing. This cant go on.

“We need a new PM who can reach out & build some sort of coalition for a Plan B.”

(Image: OLIVIER HOSLET/EPA-EFE/REX)

The embattled Prime Minister has been increasingly isolated this week, after a series of errors which caused ministers to question her decision making.

On Wednesday night she delivered a broadcast address, blaming MPs for the Brexit gridlock - and angering many of her supporters.

There have been reports that Tory donors are threatening to withdraw funding from the party.

And on Friday the DUP published an excoriating statement, railing at her “inexcusable” failure at the EU summit in Brussels.

Mrs May successfully faced down a no-confidence motion in her leadership in January, meaning she is immune from a formal challenge to her leadership for another nine months.

(Image: AFP/Getty Images) (Image: AFP/Getty Images)

But ministers are now understood be ready to threaten to walk out en-masse unless she hands power to a ‘caretaker’ PM and walks away.

Even Chief Whip Julian Smith, who is in charge of discipline in the Tory ranks, is reported to have told Mrs May she needs to set out plans for her departure from Number 10.

And now there is reportedly jostling for position between Lidington, who has effectively been Mrs May’s deputy and stands in for her at PMQs , and Michael Gove, who stood against her for the party leadership in 2017.

While he is not officially Mrs May’s deputy, he is the most constitutionally likely to take the reins as a ‘caretaker’ if Number 10 suddenly becomes vacant.

But one senior cabinet minister told the Mail on Sunday: “The British public will never forgive us if, in a time of historical crisis, our answer is David Lidington.

“This is where it is going to get very scary, whatever you think about it.

“If we do not deliver Brexit, we are so unbelievably f*****, not only as a party or a government, but in a national way. Now is the time to be bold.”

(Image: AFP/Getty Images)

After another turbulent week for the Prime Minister which saw her come under fire for delaying Brexit and seeking to blame MPs for the impasse, the Commons was expected to be given the third chance to vote on her Withdrawal Agreement this week.

But on Friday night Mrs May wrote to parliamentarians warning if there is insufficient support for her Withdrawal Agreement in the coming days that she could seek an extension to Britain's EU membership beyond the European Parliament elections.

Mrs May said she was holding Brexit meetings over the weekend as she tweeted pictures of herself on the local election campaign trail in Milton Keynes.

Tory former Brexit secretary David Davis argued leaving without a deal on World Trade Organisation terms "looks much better than the other options in front of us" in a piece for the Sunday Telegraph.

He wrote: "If Parliament rejects the deal on offer, the Prime Minister has it in her power to deliver a WTO outcome. That is what she should do.

"And if some Ministers resign as a result? That would be a pity, but there are always volunteers to replace every departure."