Boris Johnson has accused Rishi Sunak of "talking rubbish" amid a bitter row between the pair over peerages and gongs to the ex-PM's close allies.
The statement came just hours after the PM hit back at his predecessor, saying he had asked him "to do something that I wasn't prepared to do" over Lord's appointments.
Mr Sunak said the former Tory leader had asked him to overrule the vetting committee for appointments to the House of Lords "or to make promises to people".