Mitch's mum is angry.

Ten-year-old Mitch is on the autism spectrum and his mum is seething that the One Nation leader said children with disabilities were putting a strain on teachers and schools and should be educated separately.

Mitch's mum, Emma Husar, is also a Federal Labor backbencher holding the marginal seat of Lindsay.

But her rage is deeply personal as well as political.

"There is no more isolating feeling in the world than being a special needs parent," she told Parliament last year.

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Ms Husar explained to the chamber that her son's condition made grocery shopping "a mission".

"And when I say 'mission', I actually mean getting from one end of the local supermarket to the other without my son experiencing a total meltdown and the unaware shoppers you come across offering a wooden spoon to spank your naughty son with," Ms Husar said.

Bringing up a child with special needs was the main driver for her entering politics.

So when Senator Hanson's remarks yesterday left her fuming, Ms Husar marched up to journalists at Parliament's front door to tell Mitch's story.

"I have come out here today because I am angry and I am upset but most of all I am disappointed," she said.

"I am disappointed that in 2017 we have got people like Senator Hanson sitting over there in the Senate making ill-informed comments about kids that are autistic that they don't belong in a mainstream class and calling for them to be segregated."

She spoke directly to children who may have heard the Senator's comments.

"Even on the days that are hard, when you're frustrated and your disability makes you angry, you are still better than she [Senator Hanson] is on her best day," she said.

She disclosed that Mitch was diagnosed at 18 months.

"And I was told that he would never speak, that I should never expect that Mitch could play in a sports team with his age-matched peers or that he could be included in a mainstream class — but he is and he does very, very well," she said.

Pauses and extra breaths punctuated her early morning message — partly due to a mother's passion, but also potentially revealing the temperature was struggling to hit zero.

Ms Husar demanded an apology.

And on social media she posted an image of herself with her son.

"My son Mitch. Much loved cared for and included making incredible progress. More funding not less in mainstream matters. So does inclusion," her Twitter post read.

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