Support for National and Labour has fallen in the latest major poll.
The disclosures in Nicky Hager's book Dirty Politics appear to have hurt both major parties but benefited the smaller ones.
The latest 3News-Reid Research poll shows National recorded 45 percent and Labour 26.4 percent, while the Conservative and New Zealand First have gained support.
The Conservatives' support jumped from 2.5 to 4.6 percent in this poll.
New Zealand First was up to 6.3 and the Green Party rose marginally to 13.5 percent.
None of the other parties polled anywhere near 5 percent.
The poll surveyed 1000 people and has a margin of error of plus or minus 3.1 percent.
In the POLL of POLLS, a Radio New Zealand average of the four most recent polls - calculated by political analyst Colin James - the 3News-Reid Research poll now produces the following result:
- National 48.3%
- Labour 26.3%
- Greens 12.4%
- NZ First 5.6%
- Conservatives 2.7%
- Internet Mana 2.7%
- Maori 0.8%
- Act 0.5%
- United Future 0.4%
*Polls included: Morgan, Colmar, DigiPoll, tonight's -Reid Research poll - which is the latest in terms of the midpoint date of polling. Ipsos the outlier drops off: it favours National roughly 5% more than the others and downgrades Labour roughly 5% more than the others.