The Conservative Party would lose one Berkshire seat if an election were held tomorrow, according to data, as pressure mounts on the Prime Minister to resign.

Labour are on track to gain Reading West, while the county’s other seven constituencies would remain split five to two between the Tories and Labour respectively.

The predictions are based on a January poll of polls analysed by Electoral Calculus, a group who were the most accurate pre-poll predictors of the 2019 general election.

This does not include the impact controversies plaguing Downing Street since then could have on voting intentions.

Incumbent Conservative MPs in Berkshire are among those calling for a change of leadership in the Conservative Party.

MP for Newbury Laura Farris called on Boris Johnson to resign in a statement on Facebook this evening.

She said said: “Every time I walk into Parliament, I feel an extraordinary sense of privilege and the responsibility that comes with representing my home in Parliament.

“I have always sought to represent my constituents with the seriousness, energy and commitment that they deserve. I do not believe this to be possible under the current leadership.”

Bracknell MP, James Sunderland, resigned as Parliamentary Private Secretary to the Department for Environment, Food & Rural Affairs today.

In a statement, Sunderland said: “I have today resigned as Parliamentary Private Secretary to the Department for Environment, Food & Rural Affairs.

“I would like to thank everyone who has taken the trouble to share their views with me in recent months.

“I continue to serve the people of Bracknell, Crowthorne, Finchampstead, Sandhurst and Wokingham Without to the best of my ability.”

A delegation of Cabinet ministers is meeting Boris Johnson to urge him to leave Downing Street, as he haemorrhaged support across the Tory ranks.

The Prime Minister insisted “I’m not going to step down” as sources said Grant Shapps and Brandon Lewis are among a group of once-loyal allies demanding he quits.

Seventeen ministers, and a line of ministerial aides, resigned as Mr Johnson’s authority drained away in a dramatic 24 hours in Westminster.

His battle to remain in power will reach new heights during the clash with Cabinet members, with sources telling the PA news agency Mr Lewis, the Northern Ireland Secretary, believes his position is “now untenable”.

Mr Shapps, the Transport Secretary, who was key in the Prime Minister’s fight for survival during partygate, was also understood to be part of the group, as was Welsh Secretary Simon Hart.

Business Secretary Kwasi Kwarteng is also understood to believe the Prime Minister now has to go.

Reports even suggested Nadhim Zahawi, who was only appointed Chancellor on Tuesday, will be among those taking part in the showdown with Mr Johnson.