A gentle nudge from John Key, to Te Tai Tokerau voters.

The National Party leader's no great fan of Hone Harawira.

And now that Labour's Kelvin Davis is neck and neck with him in new polls, John Key's offering a subtle endorsement.

"Well, we obviously want them to give their Party vote to National, but we don't have a candidate there and if they want to vote for Kelvin Davis because it's a sensible thing to do then they should go ahead of do it."