Ed Miliband has said he is certain Keir Starmer will sack whoever briefed against Wes Streeting, after a chaotic 48 hours in which No 10 launched an operation to shore up the prime minister against an anticipated leadership challenge.
The prime minister apologised to the health secretary in a phone call with him late on Wednesday. Starmer is facing mounting calls to sack his chief of staff, Morgan McSweeney, over the row.