Paula Bennett has described the "hilarious" moment she watched the Green Party car dealership ad with Simon Bridges.
An attack ad, which mocked the National Party leader's accent, was taken down after a few hours, when Greens supporters objected.
Bennett told Simon Barnett and Phil Gifford the pair couldn't stop laughing, and it was "instantly funny".
"I was with him when he first saw it, and the two of us just absolutely cracked up laughing. Who doesn't like taking the mickey out of someone, aye."
She says that she loved the flashy signs and the car dealership angle.
The ad came under controversy from Green Party supporters, with some taking to social media to call it "classist bulls**t".
Speaking to media after the ad was pulled, Shaw said the Greens were trying to use satire to make a point about the use of National's attack ads.
"It didn't go well, so we pulled the ad."
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