The latest opinion poll shows the gap closing slightly between the two major political parties.
The One News Colmar Brunton poll released on Sunday night has National on 54% and Labour 33% - a narrowing of the gap by four percentage points since the last poll.
The Green Party falls below the 5% threshold, coming in at 4.3%, while ACT has 3.2% and the Maori Party 2.7%.
Prime Minister John Key still tops the preferred leader poll with 50%; Labour leader Phil Goff is on 9%.
The poll of 1,000 voters has a margin of error of plus or minus 3.1 percentage points.