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A poll predicting a 110-seat majority win for Boris Johnson at the general election shows the Conservative Party has more support among working-class voters than the upper classes.

The survey found 43 per cent of people at the bottom of the social grading system - known as ‘DE’ voters - planned to vote for the Tories on December 12. That figure is up 35 per cent two years ago.

The Savanta ComRes poll for the Daily Telegraph found 40 per cent of those in the highest demographic band - known as ‘AB’ voters - were prepared to back Mr Johnson, compared to 46 per cent who were prepared to back Theresa May in 2017.

Mr Johnson is hoping to win over Labour Leave constituencies to secure a parliamentary majority.

Under the NRS social grade system of demographic classification, AB voters are considered upper and middle class, while DE are working-class voters and those who do not work, including pensioners, the unemployed and people on state benefits.

The pollster said it was possible the results may have been affected by a change in its methodology since the last election.

It comes after a survey conducted by the same pollster found the Conservatives were in the lead with 40 per cent while Labour was on 30 per cent.

The findings marked the largest Conservative lead in a Savanta ComRes survey since the 2017 ballot, the pollster said.

The voting intention poll, which involved 2,022 adults on November 11 and 12, put the Lib Dems on 16 per cent and the Brexit Party on 7 per cent.

Voters were surveyed following the Brexit Party's announcement they would not run in the 317 constituencies the Tories won in 2017