Former prosecutor Nancy Grace had choice words for Casey Anthony’s return to the spotlight as a “legal advocate” against President Donald Trump, calling the new venture an elaborate “money grab.”

Grace, the former HLN commentator who gave daily updates to the three-year long murder trial of Casey’s toddler Caylee, challenged the authenticity of the 38-year-old’s new activist career.

“Legal advocate, legal advocate? My rear end,” Grace told TMZ.

“She says she’s been in the legal field since 2011, when she was tried for murder. That’s her exposure to the justice system,” the 65-year-old added.

Anthony was on trial for her 3-year-old daughter’s 2008 murder before being acquitted in 2011.

Casey Anthony — one of America’s most hated women — rebrands herself as civil rights advocate to oppose Trump

She has since rebranded herself as a “legal advocate” for women and the LGBTQ community, The Post exclusively reported Monday.

The sudden change from the alleged home wrecker is because of her deep disdain towards Trump, a source said.

Anthony shared the news to TikTok in an attempt to “reintroduce” herself.

“As a proponent for the LGBTQ community, for our legal community, women’s rights, I feel that it’s important that I use this platform that was thrust upon me and now look at as a blessing as opposed to the curse that it has been since 2008,” Anthony said in the 3-minute video.

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Grace described Anthony as a “freeloader” and claimed she was using her name and profile to earn money.

“Thousands of idiots have already signed up to hear ‘tot mom’ talk about her legal expertise,” Grace said.

She also advised the former murder suspect to be careful of how she represents herself as pretending to be a lawyer giving and legal advice is “against the law.”

During Saturday’s TikTok announcement, Anthony only invoked her daughter and parents’ names when explaining who she was before stating, “this is not about them.

“This is not in response to anything that they have said or done. The whole point of this is for me to begin to reintroduce myself,” Anthony added.

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Grace said her interest in Anthony’s legal expertise was similar to the curiosity she gets when visiting the “snake house” at the zoo.

“I look at the poisonous snake through a glass, that’s as close as I am gonna get. So I will not be subscribing to tot mom’s Substack,” she said.

The legal pundit warned prospective subscribers to Anthony’s newsletter to save their money — claiming the funds used for the advice would be equivalent to voting “not-guilty” in the 2011 murder trial.

Grace called for Anthony’s legal career to focus on her daughter’s murder, describing some of the gruesome details investigators uncovered of the toddler’s body found covered in a swamp area houses away from the Anthony household.

“That’s my focus, so all of the attention about ‘tot mom’ finally getting a job, eh,” Grace said.