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Housing Minister Kit Malthouse is the latest person to enter the race to succeed Theresa May.
Mr Malthouse, widely credited as the convener of both Conservative Leavers and Remainers to develop a compromise on Mrs May's withdrawal agreement, said there was a "yearning for change".
The MP for North West Hampshire is the 10th hat in the ring after Mrs May called time on her Downing Street tenure, with Michael Gove, Matt Hancock and Boris Johnson among those to have already declared their candidacy.
The 52-year-old is a former deputy mayor of London and entered the Commons in 2015 as David Cameron's Conservatives won a majority.
His name was given to the so-called Malthouse Compromise - a proposal drawn up by backbenchers from Leave and Remain wings of the Tory Party, which would have implemented Mrs May's Brexit deal with the backstop replaced by alternative arrangements.
Writing in The Sun, he said: "This leadership campaign cannot be about the same old faces, scarred by wars that have split the Tory party over three years.
"We need to end the Brexit paralysis, and while I voted to leave the EU, I know that without unity across the UK, we cannot get a deal over the line. "It's time for a new generation to lead the charge into our future with boldness and vision."
Conservative MP Kit Malthouse says any other outcome would be a “gamble”.