The Green Party has decided not to run a candidate in Ohariu to give Labour a better chance at unseating United Future leader Peter Dunne.
That is despite the Green Party previously expressing concerns about the Labour candidate Greg O'Connor's position on several issues.
Green co-leader James Shaw said his party's national executive decided against running a candidate in Ohariu "because it increases our chances of changing the Government".
Dunne won the seat by just 710 votes in 2014, while the Green Party candidate Tane Woodley received 2764 votes.
Woodley will campaign for the party vote in the electorate this year but will not put his name on the ballot paper.