Dominic Grieve calls for 'shameless' PM to be forced out

Former Attorney General Dominic Grieve calls Boris Johnson 'shameless' but doesn't expect him to resign over partygate, saying "his fingers are going to have to be prised off the window ledge". He asks "how on earth" the PM could argue that he he was unaware of Downing Street gatherings when he was fined for taking part. .