Just when it was beginning to look as if the only imponderable in this election campaign was whether John Banks would take Epsom and save the Act Party from extinction, a new poll suggests a change in the political wind. In Friday's Herald-DigiPoll, National had dipped below 50 per cent for the first time in this campaign.
Of even greater interest was the reappearance of NZ First on the political radar. In the Herald poll a week earlier, the party had been languishing at 1.7 per cent; this week, it was at 3.7 per cent. It might have been dismissed as a blip, but the One News/Colmar Brunton poll the previous evening and a Roy Morgan poll released on Friday showed similar trends.
This is way beyond anomaly: if TV3's next results, announced tonight, agree with those three, it will be a minor seismic shift and the prospect of NZ First's making it back into the House on the strength of its party vote will look like something other than a fevered fantasy.
The inevitable question has to be why support for Winston Peters - who is inseparable from the NZ First brand - should have started climbing.
As politicians staring at defeat are fond of saying, the only poll that counts is the one on election day and many voters change their answers to poll questions when faced with the ballot paper. It is more than possible that some of the support for Peters has been from people wanting to send a message to someone else: to tell John Key that he shouldn't count on the unbridled power of an absolute majority; to tell Labour it doesn't look like a credible Opposition, never mind a Government; to tell Act to go away.