Senators Derryn Hinch and Pauline Hanson have clashed over controversial comments made by US presidential candidate Donald Trump.

Senator Hinch and Senator Hanson were caught on camera arguing in the hallways of Parliament House in Canberra after an appearance on the Seven Network in which they were asked about lewd comments made by Mr Trump in 2005.

"It was said, not on camera, it was said behind the scenes and was a tape recording. Now let’s be honest about it, there are a lot of men out there that say horrific things, probably up to the same standard," Senator Hanson said in the interview.

"That you as a woman, could make any justification for what he (Mr Trump) has said and done…" Senator Hinch said.

"I didn’t condone what he said," Senator Hanson retorted, as the pair made their way down the corridor.

"If you are even slightly right… God help the country and God help the world," the Justice Party leader said, shaking his head in disapproval.

"The man is a sexual predator and a disgrace," he concluded, before entering an elevator.

Senator Hinch and Senator Hanson have clashed in the hallway of Parliament House. (Supplied)

Prime Minister Malcolm Turnbull took a similar viewpoint to Senator Hinch, calling Mr Trump’s lewd comments as "loathsome".

“They deserve the absolutely universal condemnation that they've received,” Mr Turnbull added.

Minister for Women Michaelia Cash said the comments were "demeaning, they were disappointing and they were wrong, full stop", while new Labor MP Emma Husar labelled Mr 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 said.

However Liberal Democrat David Leyonhjelm noted that Mr Trump was 70 years old and such 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," the senator said.

"A lot of nasty things are said about men too."

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."

Deputy Prime Minister Barnarby Joyce, while labelling Mr Trump's comments as unacceptable, criticised both the Democrats and Republicans for digging up dirt 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."