The latest Herald-DigiPoll survey may have been bad for Labour in general and very bad for its leader in particular. But there is no chance of it prompting behind-the-scenes moves to dump David Cunliffe.
Things would have to get a lot worse for such a notion to be actively canvassed by MPs in Labour's caucus. And even then it would be unlikely to happen unless the main polls were consistent in showing support for Labour falling from the 29 per cent the party registered in the Herald poll into "time-to-panic territory" below 25 per cent.
Even then it is more than likely nothing would happen unless Cunliffe could be persuaded to walk away quietly for the good of the party. And that, in turn, seems an unlikely prospect under most such scenarios.
When Labour's rank-and-file members and trade union affiliates used their voting power last September to install Cunliffe as leader over the heads of the majority of the caucus, they effectively made the caucus' bed for it at least until the election. The caucus has no choice but to lie in it.
Just six months from the election, Labour simply does not have the time nor the inclination to run another lengthy leadership contest, which would leave the party rudderless at one of the most crucial stages of the electoral cycle.