Senator Jacqui Lambie has reacted furiously to a One Nation cartoon branding former SAS soldier and Liberal MP Andrew Hastie a “traitor”.

Lambie said One Nation leader Pauline Hanson was “the lowest bit of life”.

“What she’s doing in those cartoons is absolutely disgusting,” Lambie told ABC’s Radio National, herself a former veteran.

“Attacking Andrew Hastie, a veteran that has served in our Afghanistan war, or any other veteran, is the lowest ebb you can possibly do.

“That woman is nothing less than a bloody coward. She always has been and always will be.

“She wouldn’t last one day in that goddamn uniform. Leave our veterans alone, Hanson.”

Politicians of all stripes, including Opposition Leader Angus Taylor, have demanded the One National leader remove the video, which remains pinned to the top of Pauline Hanson’s profile.

“Andrew Hastie has served this country with distinction as an officer in the SAS, she should take it down,” Taylor told reporters on Thursday.

Hastie said Hanson and One Nation MP Barnaby Joyce were “lying cowards” and called the party leader “glass-jawed”.

He accused One Nation of politicising the court proceedings of accused war criminal Ben Roberts-Smith and “trashing” his own service record.

The Don’t Be Hastie episode features Hastie complaining to Prime Minister Anthony Albanese that people are calling him a traitor online.

“All I did was testify against Ben Roberts-Smith and support your evil hate speech legislation,” the cartoon Hastie tells the PM.

The WA-based MP was subpoenaed to testify against Roberts-Smith’s in a defamation trial in 2022, which generated tension between himself and Senator Hanson.

The spat comes as the Coalition seeks to nullify a surge of support for Hanson’s populist party, which has split much of the right-wing vote especially in regional and rural Australia.

The WA state seat of Secret Harbour, which sits squarely within Hastie’s federal seat of Canning, was the latest to flip to One Nation at a by-election in August, as the anti-immigration party eyes off coalition-held electorates.

Hanson on Thursday continued denying calling the Liberal MP a traitor.

But the Liberal MP, seen by some political commentators as the party’s potential future leader, said the video had cast a “massive slur” on veterans across the country and he would continue to call out the One Nation leader.

“It shows her to be weak and glass-jawed. I gave the opportunity to either own her words publicly, or to take it down, she chose neither,” he told ABC Radio.

“Rather than stepping up as a leader, she claims she could be prime minister, she actually retreated back into cartoons and memes.

“So I think we’ve seen what Pauline Hanson ultimately is about. She’s not fit to govern this country.”

While he said he disagreed with most of what Hastie says, Greens senator David Shoebridge also came to the Liberal’s defence, describing the attack as disgraceful.

“You might agree or disagree, but (Hastie) goes into court and tells the truth as they understand it under oath, bloody hell, that’s actually what we want our politicians to do,” he told News24.

Hastie said he was not seeking legal action against Hanson, citing concerns about One Nation leader’s support from billionaire mining magnate Gina Rinehart.

Rinehart, who is Australia’s richest person, is a fierce supporter of Roberts-Smith and has named a planned housing complex for veterans in his honour.

-with AAP