Poll: Who should be National's new leader

The contest is now on in the National Party to replace former leader Bill English - and Judith Collins and Simon Bridges are currently the front-runners.

"We're going to need strong & decisive leadership if we're going to win in 2020," Ms Collins wrote on Twitter - while Mr Bridges announced he was running at a press conference.

Nikki Kaye has ruled herself out, while Jonathan Coleman hasn't ruled anything in or out.

But as the backstabbing and betrayal gets underway, who do you think should be leader of the Opposition?