Support for the National Party has risen in the latest Roy Morgan poll, while support for the Labour and Green parties has fallen.
National has drawn almost level with Labour and the Greens since the previous Roy Morgan poll in May.
National recorded 44%, Labour 33% and the Greens 11.5%.
New Zealand First got 6% support, but none of the other minor parties came anywhere near the 5% party vote threshold.
The poll surveyed 909 voters between 3-16 June and has a margin of error of about plus or minus 3.2%.