And so another political leader has gone. 

Peter Dunne has stood down, reluctantly it seems.

The polls showed he would lose Ohariu and so five weeks out from the election, he's out. Labour's Greg O'Connor is polling incredibly well there, and it's clear there's a mood for change in that electorate. National's pulled the pin and because the Greens aren't standing a candidate, that makes it a two-horse race - the Nats versus Labour. And that's it. 

But isn't it remarkable just how much change we've had in terms of the leadership of our political parties and much of it has happened in the space of a few months. 

Have we ever had so much change in such a short period of time? 

Take a look back at how the political parties looked heading into the last election, in 2014. 

John Key was the leader of National. He's no longer there. 

David Cunliffe was the boss of Labour. He went swiftly, replaced by Andrew Little. And he resigned the leadership last month. 

Russell Norman and Metiria Turei were the co-leaders of the Greens. They're both gone. 

United Future. Peter Dunne is out.

ACT. Jamie Whyte was the leader of that party. He's gone too.

The Maori Party. Tariana Turia and Pita Sharples were the co-leaders, Sharples resigned just before the election but those two leaders have gone as well.

The Mana Party still exists in some form or other but without Kim Dotcom and Laila Harre.

But really, there is only one party where there's been no change. And yes, you know, it's New Zealand First. Winston Peters is the last one standing. 

If this was a reality TV show, Winston Peters would hands-down be the winner of "Survivor". 

That's part of his appeal, I think. He's consistent, stable, and you know what you get. 

In the case of the media, it's normally an earful, but you know what I'm saying. 

But Peters continues to hold the balance of power in the midst of such great upheaval.

Will he go left or will he go right? Will he be a kingmaker or will he be a queenmaker?

What a difference a term makes. There's been major change at the top of ever single political party - except New Zealand First. 

Winston, I'm sure, would have raised his whisky glass last night and rattled the ice quietly against the side amid the news that Peter Dunne was gone. 

To be the last man standing, well that's quite some achievement, and at the age of 72, it's a nod to his resilience and his extraordinary political stamina. 

He's like the Madonna of politics. He just keeps reinventing himself.