Labour list MP Kelvin Davis says if the Maori Party wants to get rid of the Mana Party leader it should not stand a Tai Tokerau candidate in the upcoming election.
The Maori Party has selected Te Waihoroi Shortland, a Maori language expert, actor and broadcaster, as its Tai Tokerau candidate for the election on 26 November.
In the June by-election for the seat, Mana Party leader Hone Harawira won with a reduced majority followed by Mr Davis. The previous Maori Party candidate, Solomon Tipene, was third.
Mr Davis says Mr Shortland's nomination will make it harder for Labour to beat Mr Harawira.
The Maori Party says mr Davis should consider moving over to the Maori Party, instead of giving advice.
Mana Party leader Hone Harawira says Maori Party leaders abandoned representing Te Tai Tokerau when he left the party.