Labour leader David Cunliffe says he's not putting any weight on the latest poll showing his party losing support at 22.5 percent.
The Stuff/Ipsos poll shows that Labour has fallen 2.4 percentage points to 22.5 percent support, while National is virtually unchanged from its July poll on 55 percent.
Mr Cunliffe said today that he's not worried by latest figures.
"It's completely out of line with others that we've taken in other recently published polls, and I feel that there's been a very positive couple of weeks for Labour, and I'll be keen to see what comes out in future."
Mr Cunliffe is predicting the results will soon turn around after claims in a new book by Nicky Hager that senior National Party members and staff were involved in feeding embarrassing and potentially damaging information on political opponents to right-wing bloggers.
Prime Minister John Key says the latest poll is "probably a bit flattering and probably under-cooks Labour's numbers. But I think overall, Labour are losing support, in my view, because they are not really engaged in the big issues."
He says Labour is losing the policy battle and that National has good leadership and stable potential coalition partners.
John Key is also well ahead in the preferred Prime Minister stakes, at 54.3, percent, while Mr Cunliffe has 12 percent.
The poll shows the Greens at 11.3 percent, Internet-Mana lifiting to 2.1 percent and the Conservative Party rising to 3.4 percent, level-pegging with New Zealand First.
The poll shows a high proportion of undecided voters, at 15.4 percent. It was taken from Saturday to Wednesday and has a margin of error of 3.1 percent.