Former Labour MP Maryan Street has ruled out a return to Parliament if Jacinda Ardern wins the Mt Albert by-election for the party on Saturday.
Street's decision to step aside means Raymond Huo will become an MP again in the likely event of an Ardern victory in Mt Albert.
A Labour win would allow the party to bring another list MP into Parliament and Street is next on the list.
But in a Facebook post last night, Street said she was "happy to confirm" she would not be "taking up a place in Parliament" after the by-election.
"I have thought long and hard about this choice and have decided that I can be just as effective on issues dear to me outside Parliament as inside - perhaps even more so.