Chris Mason: All eyes on Downing Street - what does the PM say, and when?

Chris Mason: All eyes on Downing Street - what does the PM say, and when?Just nowShareSaveAdd as preferred on GoogleChris MasonPolitical editorBBCFor the third time in four years, we appear on the brink of a prime minister announcing their plan to leave office, not because they have lost a general election but because their own party has concluded they would be better off without them.Many people within government and in the wider Labour Party expect Sir Keir Starmer to say just this, perhaps as soon as this morning.Four years ago, and three prime ministers ago, Boris Johnson was running the country.He was arguing defiantly he would carry on, but that defiance drained away as it became clear his capacity to viably govern was deserting him.In early July 2022, I was standing in Downing Street as the lectern appeared and Johnson set out that, despite winning a big majority just a handful of years before, his own MPs were fed up of him and so reluctantly he was standing down.Three months later, I was in the street again, as this time Liz Truss said she was leaving as she too had lost the support of her party.And now here we are again, in all likelihood, with Sir Keir, less than two years after he won the general election to take over from Rishi Sunak.His premiership, in the eyes of many on his own side, has been deflating for months.Chris Mason on the draining of the PM's authorityAnd for months he has been trying to raise the bar as high as possible for any of his potential successors.He made it very clear, via those close to him, that he wouldn't give up and he would stand in any leadership contest.He blocked Andy Burnham's first attempt to contest a Westminster seat – when a vacancy arose in Gorton and Denton earlier this year.And as recently as last week he said Burnham's first priority if he won the Makerfield by election should be helping Labour win the Greater Manchester mayoralty he has now vacated, and that he would offer Burnham a seat in c...