Worse, any sign of a concerted effort to push Cunliffe out of the party's top job would likely provoke something that would be little short of civil war within the party in the run-up to an election.
It simply does not bear thinking about.
There is a provision in the party's rules that should the leadership become vacant within three months of a general election, the new leader is chosen by a majority vote of the Labour caucus alone.
But any attempt to exploit a rule designed to deal with emergencies, such as the death of the leader, would be viewed by the wider party as a blatant case of the caucus trying to short-circuit the rights of ordinary members.
It would not work. It would leave the new leader at severe odds with his own party members. The disunity would only make things even harder for Labour to overcome.
Above all, any scenario for Cunliffe to be replaced requires him to go quietly for unity's sake. But why would he willingly give up the job he craved for so long? After all, Cunliffe still has more than a chance of becoming prime minister if the numbers start bouncing more favourably for Labour and the Greens in coming weeks.
The old cliche about the only poll that matters being the one on election day - for once - rings true.
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