Labour's class of 2020: Jacinda Ardern set to juggle largest caucus in Parliament's history

It was straight down to business for the much larger-scale Labour team welcoming 22 bright-eyed and bushy-tailed new MPs to Parliament in Wellington. 

"A lot of work to do but very, very pleased to be back," Labour leader Jacinda Ardern told Newshub at the airport, as she went off to welcome the largest caucus in the history of New Zealand's Parliament. 

Labour's new MPs were welcomed to Parliament by Wellington Central MP Grant Robertson and East Coast's new Labour MP Kiri Allan, who did a roll call to check if they all made it. 

Some of the newbies got a cuddle from Robertson and they all posed for a photo outside Parliament, where they also got some advice from former leader Andrew little. 

Labour's class of 2020 was set free into the wild and wonderful world that is the Parliament of New Zealand - and they're buzzing.  

"Incredible, it hasn't sunk in yet," said Steph Lewis, the new Labour MP for Whanganui. 

"Of course a little bit nervous but mainly excited," said new Labour list MP Rachel Brooking. 

"I'm very excited to meet all the new colleagues and it's a whole new adventure," said Ingrid Leary, the new Labour MP for Taieri. 

MPs get a crash course in becoming an MP with tours of the maze of buildings. There's a lot to see and a lot to learn. 

"Just finding our way around," said the Green Party's new MP Teanau Tuiono. 

"It's a lot of white men," said another of the Greens' new MPs, Ricardo Menendez March. 

ACT leader David Seymour was caffeinating after a blowout on the weekend. 

"A couple of champagnes - they really hit you," he laughed. 

He's promising to take up the role of agitator-in-chief from NZ First leader Winston Peters who did not make it back into Parliament. 

"My goal is to be Winston, just not a dickhead," he told The AM Show. 

Seymour may not have the largest caucus, but surely the highest duplication rate - nine ACT MPs joining him in Parliament. 

Seymour said he spent the day organising. There's a lot of that going on - not least with the Prime Minister trying to juggle a Cabinet. 

Labour's Chris Hipkins, who currently holds the health portfolio, said he hasn't discussed with Jacinda Ardern yet whether he will keep it. 

"I haven't even had a chance to talk to the PM about that yet," he said. 

Andrew Little said there is "plenty of work to go around and, you know, many hands make light work". 

Putting his hand up to be included is Green Party co-leader James Shaw.

Speaking to Newshub at the airport, he said he's been "really busy over the course of the last 48 hours so all of that's to come later this week". 

Asked if he gave Ardern a shoulder tap on the flight, he laughed, "No, I was a few rows back."

Ardern doesn't need to reach back down the aisle but she did meet with the Greens on Monday anyway.

Newshub has been told their meeting was just a catch-up - a chinwag about how it all shook down on Saturday, and that no negotiations got underway. But they did talk about the process and timeframes for their deal discussions.

Anyone who remembers the last election knows how long negotiations can go on for. Winston Peters took nearly a month to decide, and coincidentally it is exactly three years since his D-Day - the day he crowned Jacinda Ardern the Prime Minister.

This time it should be faster. It's a lot simpler - it is up to Ardern whether she brings the Greens in or not.

The first meeting on the cards tomorrow is the bonanza Labour caucus - and they might need a bigger meeting room.