The author made a quip about presidential candidate Donald Trump's campaign spokeswoman Katrina Pierson on Twitter, Sunday.
Rowling re-shared a 2012 tweet from Pierson that read, "Perfect Obama's dad born in Africa, Mitt Romney's dad born in Mexico. Any pure breeds left? #CNNDebate."
Referencing Harry Potter the author added, simply, "Death Eaters walk among us."
Death Eaters walk among us. https://t.co/tqKq1anHpf— J.K. Rowling (@jk_rowling) January 24, 2016
Perfect Obama's dad born in Africa, Mitt Romney's dad born in Mexico. Any pure breeds left? #CNNDebate— Katrina Pierson (@KatrinaPierson) January 20, 2012
For Harry Potter fans, the dig is obvious – Death Eaters are a group of radicals that follow the evil Lord Voldemort and wish to eliminate anyone who is not a pureblood from the magical society.
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Rowling previously shared her disdain for Trump, linking to a BBC story on Twitter about the candidate being likened to the series' antagonist.
"How horrible," Rowling wrote in response. "Voldemort was nowhere near as bad."
How horrible. Voldemort was nowhere near as bad. https://t.co/hFO0XmOpPH— J.K. Rowling (@jk_rowling) December 8, 2015
Trump, one of the Republican presidential front-runners, has a history of making polarizing comments himself.
Just this week the businessman joked at an Iowa speech that his supporters are so loyal that he could "shoot somebody, and I wouldn't lose any voters."