Meanwhile John Key believes the Internet Party will dissolve minutes after election night.

Mana party leader Hone Harawira has denied talk of a rift between himself and his co-leader Laila Harre.

But John Key says it's been a marriage of convenience funded by a man who's trying to get around the justice system.

"No, look it's all over the net isn't it?

"It's clearly blowing up.

"I mean, Hone's been missing in action for a week or so now.

"They can't agree on any of their policies, there's no longevity in that."