An Oklahoma Republican and enrolled member of the Cherokee Nation is calling on Sen. Elizabeth Warren to apologize for claiming Native American heritage.

Warren (D-Mass.) on Monday published the results of a DNA test as a rebuttal to President Donald Trump, who has long mocked her questionable ancestral claims by referring to her as “Pocahontas.”

While the results indicated Warren may indeed have some Native American heritage – anywhere from 1/64 to 1/1,024 – Rep. Markwayne Mullin (R-Okla.) is "extremely disappointed" to see her exaggerate her ancestry for political and professional purposes.

On "Fox & Friends" Tuesday, Mullin pointed to a 2014 study by Harvard University and 23andMe that found that European Americans tested overall for 0.18 percent Native American ancestry, while Warren’s results show she may have as little as 0.09 percent.

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"The idea that she continues to double down on this lie is the most disgusting thing to me," Mullin said. "What she was trying to do was put this bed so she could run against President Trump in 2020, and it is backfiring on her."

He said Warren needs to apologize to the Native American community, particularly those of the Cherokee Nation.

He explained that for his family and other members of the Cherokee Nation, their heritage runs deep, but Warren simply used "stories" of her ancestry to get publicity, sympathy and, possibly, her teaching job at Harvard University.

"We're not trying to play politics here, either. The facts are what they are," Mullin said. "It's time for her to apologize to the American people and all Native Americans."

President Trump took to Twitter Tuesday morning to blast Warren, calling her ancestral claims a "scam" and a "fraud."

Pocahontas (the bad version), sometimes referred to as Elizabeth Warren, is getting slammed. She took a bogus DNA test and it showed that she may be 1/1024, far less than the average American. Now Cherokee Nation denies her, “DNA test is useless.” Even they don’t want her. Phony! — Donald J. Trump (@realDonaldTrump) October 16, 2018

Now that her claims of being of Indian heritage have turned out to be a scam and a lie, Elizabeth Warren should apologize for perpetrating this fraud against the American Public. Harvard called her “a person of color” (amazing con), and would not have taken her otherwise! — Donald J. Trump (@realDonaldTrump) October 16, 2018

Thank you to the Cherokee Nation for revealing that Elizabeth Warren, sometimes referred to as Pocahontas, is a complete and total Fraud! — Donald J. Trump (@realDonaldTrump) October 16, 2018

Watch more from "Fox & Friends" above.

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