Boris Johnson was stated to be seething on the resignation of Rishi Sunak with one ally calling it a "knife in the front".

On that fateful day again in July 2022, Sajid Javid had already departed as Health Secretary, with none discover and with no conferences requested, it was left to the political secretary at Number 10 to interrupt the news that Rishi Sunak was out.

Johnson was apparently raging, saying "who the f*** does he think he is?", in accordance with an extract from a brand new guide by Telegraph political editor Ben Riley-Smith.

Three years after Boris introduced the then 39-year-old Rishi into the cupboard, he introduced his departure swiping at Johnson’s ethics and economics as he left.

An ally of Boris on the time stated: "It was basically a knife in the front."

During the pandemic, the pair had seemingly labored properly collectively however by 2022, issues have been deteriorating.

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The then Prime Minister was going through scrutiny from backbenchers over social gathering gate and Sunak was changing into more and more doubtless as a possible successor.

Ben carried out interviews with Downing Street advisers, senior civil servants, authorities officers and private associates of each males for his new guide, The Right To Rule.

One Boris aide claims that Johnson and Sunak weren’t all the time rivals and Johnson as soon as noticed Sunak as considerably of a ‘mentee’.

He was stated to gush over the Chancellor’s brilliance.

When Javid first give up in February 2020, Sunak was handed the keys to the Treasury, doubtless as a consequence of his monetary experience and was thrown right into a tumultuous interval of UK politics together with the onset of Covid-19.

Their variations got here extra into gentle because the pandemic ended and the main target turned to the financial system. Johnson was vowing to finish austerity with large spending, whereas Sunak was dedicated to low spending and reducing debt.

The guide claims one individual by Sunak’s facet on the time stated: “He was fairly alarmed by how a lot the state had grown through the pandemic.

“He all the time needed to get again to a type of state the place you don’t must tax as a lot and the personal sector does extra of the heavy lifting.’

An early disagreement over social care coverage noticed Boris demand the additional spending, with Sunak saying a National Insurance rise must pay for it. A transfer that not solely cut up the pair however noticed the Tory social gathering flip bitter as properly.