Former justice secretary and deputy prime minister Dominic Raab will stand down on the subsequent election, Sky News understands.
It comes a month after he stop Rishi Sunak's cupboard over claims he bullied civil servants.
Mr Raab has been the Conservative MP for Esher and Walton in Surrey since 2010.
He has "become increasingly concerned" concerning the stress the job has positioned on his younger household, in line with a letter explaining his resolution seen by The Telegraph.
Mr Raab is the most recent high-profile Tory MP to announce they won't be contesting their seats.
Other former cupboard ministers reminiscent of Sajid Javid, Nadine Dorries, Matt Hancock and George Eustice have also announced their intention to stand down.
Last month, a bullying probe into Mr Raab's behaviour concluded he acted in an "intimidating way" and was "unreasonably and persistently aggressive" in conferences.
The findings, from impartial investigator Adan Tolley, additionally mentioned his conduct whereas working throughout totally different authorities departments "involved an abuse or misuse of power in a way that undermines or humiliates".
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The report was triggered after eight formal complaints towards Mr Raab from throughout his time as justice secretary, international secretary and Brexit secretary - with two of them upheld.
Mr Raab, who denied wrongdoing, had mentioned he would resign if he was discovered to have bullied civil servants.
He stored that promise however in a fiery resignation letter took problem with the report, calling the inquiry "flawed" and claiming the conclusions "set a dangerous precedent for the conduct of good government".
He later mentioned it was a "Kafkaesque saga" and accused a small faction of civil servants of coordinating a plot to oust him.
Mr Raab gained his seat on the final election with a small majority of simply over 2,700 - down from a majority of greater than 23,000 in 2017.
The space is a primary goal for the Liberal Democrats in 2024, when the following basic election is because of happen.
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