Election 2023: National's Christopher Luxon walks off again amid more questions over tax plan

National's Christopher Luxon spent the day petting farm animals at an Agriculture Day in Karaka. 

But it wasn't all fluffy lambs - there was also something dogging him. For the 17th day running, he's refusing to release the modelling of his controversial tax plan. 

It started it off with Luxon, locals and plenty of lambs.

Those at Karaka School Ag Day flocked to the National Party leader for selfies and school camp fundraising. 

Then came the classic 'guess how many lollies in the bottle'.

It's a perfect metaphor for his tax plan - guess how much his foreign buyers tax would raise. 

Luxon fronted up to media with a folder. Asked if that contained the Excel spreadsheet of modelling for his tax plan, Luxon said it wasn't.

"It's just a bunch of papers that I have, I carry with me and read in the car."

It's been 17 days since he announced it and 17 days of refusing to release his workings. 

He continues to disagree with economists who have alleged holes in the plan. 

There's a word he's used consistently over the last fortnight to describe it: "Rock solid."

Asked what type of rock he was referring to, given there are some rocks that are soft and can break, Luxon wrapped up the press conference. As he prepared to leave, he said the plan was "granite".

Then cue his signature move, walking off.

Newshub followed him, saying there were still questions to be answered.

"We've just had 20 minutes," he said.

As he pushed back, Newshub suggested he could go back to the lectern and answer more.

Unsurprisingly, he didn't take us up on that offer. 

Labour's Chris Hipkins is questioning Luxon's ability to face scrutiny. 

"If Christopher Luxon is walking away from tough questions as Leader of the Opposition, I don't think he would cope with the kind of scrutiny that you get as Prime Minister."

While Luxon spent the day mixing with the locals, the lambs, chooks and calves, Labour and the Greens were mixing with the unions. 

They had to make it through an immigration amnesty protest first, but inside, the E tū union were rallying support for a Labour-led Government

Two weeks of the campaign appeared to have taken a toll on Hipkins, who was looking a little glazed over.

He said he was feeling great and rejected he was looking glazed over.

Hipkins gave a speech outlining what he thinks is at stake this election.

"A Labour-led Government that has proudly legislated for fair pay agreements," he said.

The Greens used it to launch a jibe at Labour.

"I do want the Greens to have more MPs and more ministers around the Cabinet table. Absolutely I do," said co-leader Marama Davidson.

The Greens also announced they want Kiwis to have five weeks of annual leave, up from the current four.

It was a campaign day of holidays, fair pay agreements, and tax silence amongst the lambs.