The chancellor of the exchequer has said he doesn't expect former foreign secretary Boris Johnson to become Prime Minister, claiming he is incapable of "grown-up politics".
Philip Hammond made the comments after the first day of the Conservative party's annual conference in Birmingham.
Asked by the Daily Mail whether Mr Johnson could become Prime Minister, Mr Hammond said "I don't expect it to happen" and suggested Mr Johnson could not do "grown-up politics".
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He went on to criticise Mr Johnson for having "no grasp of detail" on subjects like Brexit, suggesting his greatest achievement to date had been introducing the "Boris Bike" cycle scheme while he was London mayor.
Mr Johnson has been vocal about his position on Chequers, describing the Brexit policy as "deranged" and "preposterous" in an interview with the Sunday Times.
He has been widely criticised by fellow MPs, with former Brexit secretary David Davis telling Sky News's Sophy Ridge on Sunday that Mr Johnson's ideas were "good headlines but not necessarily good policies".