Green Party co-leader James Shaw is set to be confirmed as his party's candidate for the Wellington Central seat.
The Greens' Wellington Central branch will select its candidate at a meeting tonight, and Shaw is the only nominee.
That means he is likely to compete at the general election against Labour's Grant Robertson, who won the seat with ease in 2014. Shaw placed third, but he was not an MP at the time. He has since become co-leader of the party and has a higher profile.
The Greens beat Labour by 2000 votes in the Wellington Central party vote. It was the Greens' best turnout in any seat in 2014, and pushed Labour into third place.
Shaw's likely nomination puts an end to speculation he could stand in the Ohariu electorate as part of a deal with Labour to unseat United Future leader Peter Dunne.