A clash between the government and Labour MPs over disability benefits was foreseeable long before this week’s Commons rebellion. That doesn’t mean a crisis was inevitable. Compromise might have been reached before the 11th-hour climbdown that averted a defeat in parliament.
The conflagration that burned a lot of Sir Keir Starmer’s authority was all the greater because trust had broken down. The twin causes were failure of political judgment in Downing Street and bad policy. The prime minister underestimated the potency of MPs’ objections to the withdrawal of personal independence payment (Pip) from disabled people, and overestimated the capacity of his whips to bully and cajole his party into accepting the changes.