Guardian/Observer today,
" The root cause of the party's rolling crises is as easy to identify as a solution to its agony is hard to find. Labour has a leader who has totally lost the confidence of his colleagues in parliament. They fear that he is taking them on a trajectory that will end with the party's worst election collapse since the 1930s. The MPs do not have the backing of a large chunk of the party selectorate that picks the leader. Much of that selectorate is wildly unrepresentative of the voters that Labour must persuade if the party is to survive as a plausible opposition, never mind become a viable competitor for power."
https://www.theguardian.com/commentisfree/2016/jul/24/jeremy-corbyn-labour-leadership-mutiny-desperation