Former President Barack Obama is demanding a pro-Trump group stop airing a "despicable" ad that uses a recording of Obama’s voice to attack former Vice President Joe Biden— a rare intervention in a race that Obama has largely avoided so far.

"[T]his despicable ad is straight out of the Republican disinformation playbook, and it’s clearly designed to suppress turnout among minority voters in South Carolina by taking President Obama’s voice out of context and twisting his words to mislead viewers," Obama spokesperson Katie Hill told NBC News.

The ad from the Committee to Defend the President, which aired on the local South Carolina CBS’ affiliate multiple times before and during Tuesday night’s debate, borrows from an Obama audiobook to suggest the former president is criticizing his former VP.

"Joe Biden promised to help our community. It was a lie. Here's President Obama," a narrator in the ad says, leading into an audio clip of Obama decrying "plantation politics" and "black people in the worst jobs" over headline summaries knocking Biden's history on race. "Joe Biden won't represent us," a female narrator concludes.

Obama's office said his lawyers would be sending the pro-Trump group — which according to its website started as the "Stop Hillary PAC" in 2013 — a cease-and-desist letter on Wednesday.