Barely one in eight voters think Theresa May’s Chequers deal will be ‘good for Britain,’ a poll found yesterday.

The Prime Minister has insisted the controversial deal struck at her country retreat last week is ‘in the national interest’ and the best option for achieving a ‘smooth’ Brexit.

But she has been rocked by the resignations of Boris Johnson and David Davis and a fierce backlash from Tory Eurosceptics over the contents of the plan.

The YouGov survey of 1,732 voters for the Times also suggests that Leave supporters are having their confidence in Theresa May tested

And a YouGov poll uncovered widespread public concern, with neither Leave nor Remain voters believing it would be good for the country.

Only 23 per cent of voters said the Chequers deal would ‘respect the result of the referendum’, with 39 per cent saying it would not.

Among Leave voters, just 16 per cent said the deal was in line with the referendum.

Overall, only 13 per cent of voters said the deal would be ‘good for Britain’, with 42 per cent saying it would not.

Only 3 per cent of voters said they would be ‘very happy’ if the final Brexit deal matched the Chequers proposals.

The YouGov survey of 1,732 voters for the Times also suggests that Leave supporters are having their confidence in Mrs May tested as a result of the deal.

The proportion of Leave voters saying the PM is ‘handling Brexit badly’ jumped from 62 per cent at the weekend to 76 per cent by the middle of this week, after the resignations of Mr Davis and Mr Johnson shattered the fragile Cabinet unity over the deal.

Two-thirds of Leave voters (66 per cent) and 64 per cent of Tory voters said the deal was too ‘soft’.

The resignation of Mr Davis is seen as a blow, with 53 per cent of Tory voters saying the former Brexit Secretary was an asset to the Government.

Views on Boris Johnson are more split

But views on Mr Johnson are more split, with 42 per cent of Tory voters saying he was an asset as foreign secretary, and 36 per cent saying he was a ‘liability’.

Overall, almost half of voters said Mr Johnson was a liability, with only 24 per cent describing him as an asset to the government.

Eurosceptic MP Nadine Dorries warned that the Tories could suffer a repeat of their 1997 meltdown in the polls unless the Government stayed true to the referendum result.

She said: ‘Seventy per cent of our core vote is Leave. Many Ukip-ers, who denied us government and councils for so long have come back into Conservative fold.

Should we proceed with the Chequers deal, 1997 will happen all over again. The trouble is, many Tory MPs are too young to remember what that felt like.’

But the poll also raises serious questions about Labour’s approach to Brexit. Just 14 per cent of voters said Labour’s position was clear, with 63 per cent describing it as unclear or confusing.