Gareth Morgan reckons it's all over for National.

The Opportunities Party leader has shared his view while discussing the change of Labour Party leadership with Newstalk ZB.

He told Newstalk ZB's Chris Lynch Jacinda Ardern is an intelligent person and good communicator and has triggered a generational voting change.

"I think Jacinda will win, and from my perspective, I'm absolutely thrilled about that because it means it helps - the younger people suddenly feel they've got a more friendly voice."

WATCH THE VIDEOS BELOW:

PART TWO HERE: