Pauline Hanson and Derryn Hinch have been filmed arguing in the corridors of Parliament House about their views on , which have drawn international condemnation.
The episode begun when Hanson offered her thoughts on Trump's comments to reporters, where she admitted that they were "vulgar", but alluded that they were said more than a decade ago.
"It wasn’t said publicly, [it was] said behind the scenes in a tape recording. That was 10 years ago," she told reporters.
"I do believe that the people of America are fed up with the major political parties of Republicans and the Democrats and the way the country has been.
"I know Trump is standing as a Republican. The whole fact is they are looking for change. They have seen the destruction of their country, their way of life, the standard of living and want someone who will fight for them. It is up to the people."
Senator Hinch confronted Hanson, in an altercation captured by Channel Seven, claiming it was disgraceful that she could support Trump, especially as a woman, describing him as a "sexual predator".
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Leyonhjelm claims comments were common
A crossbench senator David Leyonhjelm believes people should cut Donald Trump some slack over his comments about women, saying he is a man of his times.
David Leyonhjelm says the US presidential hopeful is 70 years old and those remarks - although pretty distasteful - used to be a lot more common.
"He's a man of his times perhaps, so perhaps you could cut him a little bit of slack," he told reporters in Canberra on Monday.
"A lot of nasty things are said about men too," he said.
Senator Leyonhjelm said the more important question was whether it affects his ability to be a good president.
"You can't really tell that from the fact that he's a misogynist."
Labor senator Doug Cameron doubts there will be a Trump presidency.
"Why would any woman in America vote for Trump?" he asked.
"The sooner he's defeated, or the sooner he gives in the better."
Nationals senator Bridget McKenzie is hopeful that America makes the right decision, as she prepares to watch the second debate with interest.
New Labor MP Emma Husar said Australia would work with whoever was elected, but called Trump a "pig".
"He's an absolute repugnant animal who deserves to have every single Republican who is well-respected over there walk away from him," she told reporters.
Deputy Prime Minister Barnarby Joyce, while labelling Mr Trump's comments as unacceptable, criticised both the Democrats and Republicans for digging up rubbish from each other's past.
"I just think this whole debate in the United States is turning into a dirty, filthy concoction which belies the respect the American people deserve," he told ABC radio.
"They're all digging up rubbish from each other's past and I just think the whole thing is pretty unsavoury."
Prime Minister Malcolm Turnbull labelled the comments "loathsome" and said they deserved the "absolutely universal condemnation that they have received".
Minister for Women Michaelia Cash said Mr Trump's comments were "demeaning, they were disappointing and they were wrong, full stop".
With AAP.
