David Seymour is playing down criticism after he drove a 77-year-old Land Rover up the front steps of Parliament.
Parliamentary security stopped the ACT leader before he got further than a few stairs.
Seymour says it was just a bit of fun and he was doing it for charity - to raise money for children's heart disease.
"I think if the people from 1948 were around, they'd be astonished that I got to talk on the wireless for doing this rather mundane act."
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