A few dozen party faithful have begun drifting into National's headquarters at the Viaduct Events Centre in Auckland.

There's a definite blue theme with a scattering of blue seats, and blue streamers awaiting the Prime Minister's arrival later tonight

They are expect a crowd of around 700 on what is a wet night in Auckland.

I can tell you that the Prime Minister at the moment is at his Parnell home with friends and family.