One Nation leader Pauline Hanson has clashed with an ABC journalist outside Parliament House while her 'Fire the Liar' trucks circled the building.

The billboards on the vehicles, which read 'Stop Labor. Fire the liar', were paid for by her party's campaign against Prime Minister Anthony Albanese's Federal Budget.

So far, Hanson's fundraising efforts have raised about $4.8million.

'People are sick and tired of this government who has not given us accountability. He [Albanese] has just destroyed this nation,' the senator told reporters on Thursday.

During the press conference, she responded to questions on how she would describe her vision of a monoculture in Australia.

'We should be proud of our national identity, who we are,' she said.

'If we go into the Olympics or the Commonwealth Games, we fly the Australian flag because we're all Australians.'

Hanson then had a tense exchange with ABC's Clare Armstrong, who challenged her vision of a monoculture.

'In your monoculture, can people speak a different language at home?' Armstrong said.

'Can they practice a different religion? Eat different foods? That is multiculturalism, isn't it?'

One Nation Queensland Senator Malcolm Roberts asked if she was from the SBS, to which Armstrong confirmed she was from the ABC.

'I really want to try and understand your version of monoculture,' Armstrong added.

But Hanson snapped at the ABC journalist and said that she should 'do her research'. 

'Even Tony Abbott and other leaders around the world have said multiculturalism doesn't work,' she told Armstrong.

'Go and research that. Australia is one country. Yes, we are one nation, and it should be one language.'

During the press conference on Thursday, Hanson said she wants people to be 'proud to be Australian'.

'I'm not saying take away people's backgrounds,' the One Nation leader said. 

'But I met a woman from Russia who told me her mother said they must integrate into the society they chose to come to. 

'Many migrants who come here say, "we've come here to be Australians" and we're not embracing them as Australians.

'Multiculturalism is having all these individual tribes, with people treated as such based on their cultural background.'

The debate over Hanson's call for a monoculture was sparked after her address to the National Press Club last week when she labelled multiculturalism an 'utterly flawed' policy.

'We are a multiracial society, but we must be monocultural,' she said.

'Australians must live under the one cultural umbrella. Do Australians feel that the nation is losing its identity along with its values? We all know the answer to that.'

Her speech prompted criticism, including from Albanese who said Australia had never been a monoculture and pointed to the Socceroos at the World Cup.

The 26-man World Cup squad comes from 15 cultural backgrounds, with two - Nestory Irankunda and Mohamed Toure - migrating to Australia after being born in an African refugee camp.

'We have had a rich culture, and when we look at the Socceroos, we see examples of that rich culture, people who are proud of their ethnicity, of who they are, but also who are proud Australians,' he told reporters in Canberra on Tuesday.

'Modern Australia is not a monoculture, and it never has been. 

'Indeed, under pre-1770 and then 1788, there were many First Nations in this country, and since then, I think our diversity as a nation is a strength.'