The Labour Party leader has ruled out working with the Independent MP Hone Harawira after the election.
Mr Harawira quit the Maori Party because of differences with his colleagues, and is considering setting up a new political party.
If the MP is re-elected in November this year, Labour leader Phil Goff says his party would not enter talks with him on forming a Government.
Mr Goff says Mr Harawira would not be a reliable coalition partner.
However, he is not ruling out working with New Zealand First leader Winston Peters if he returns to Parliament.