The following story is from the Herald Sun. 

Robert Irwin has threatened to sue One Nation over a scathing video the party created using him to slam the state government.

The YouTube video, part of Senator Pauline Hanson's Please Explain series, features cartoon versions of Irwin and Bluey.

One Nation sensationally told Irwin to “lighten up” and refused to remove the video.

The two-minute video titled The State of Queensland uses Irwin to criticize the state government over the hospital system, roads, transport, sustainable energy, the housing crisis and youth crime.

It comes two weeks after the government unveiled Bluey and Irwin as faces of its new tourism campaign.

The Sunday Herald Sun has seen a legal letter that Irwin's lawyers sent to the party's video studio, Stepmates Studios, threatening to sue for defamation and demanding the video's removal. The letter states the video “tarnished” Irwin's reputation and described the unauthorized use of his image as “particularly egregious”.

But One Nation chief of staff and candidate for Keppel James Ashby told Irwin to “lighten up”.

“Your dad knew how to take a joke,” he said.

In the video, an animated Irwin tries to show Bluey all the positive things in Queensland, but they are met with problems along the way.

For example, Robert mistakes a line for a rental inspection at a dilapidated house in Rockhampton as a line to a Gold Coast theme park. In another scene, Irwin and Bluey are about to drive off in a LandCruiser, only for it to be stolen by “juvenile delinquents”.

The video also highlights the poor condition of the Bruce Highway when Bluey falls down a pothole and is rushed to hospital. When the pair arrive at the hospital, Irwin's character declares “lucky the state of Queensland has a world-class medical system”, only for them to be told there's a six-month wait.

The video was shared more than 1000 times on Senator Hanson's Facebook page and viewed 50,000 times on YouTube and 36,000 times on Facebook.