She had claimed that status as a law professor, and President Trump had called her on it.
In releasing the results, Warren referred back to a promise Trump made in July when he offered to donate $1 million to her favourite charity if a DNA test proved her Native American bloodline.
"Using a DNA test to lay claim to any connection to the Cherokee Nation or any tribal nation, even vaguely, is inappropriate and wrong", Chuck Hoskin Jr, the Cherokee Nation Secretary of State, said in a statement.
ABC then aired a portion of Warren's ad that declared the prominent Democrat "absolutely had a Native American ancestor", without reporting that the test revealed she could only be between 1/64 and 1/1,024 Native American.
Chuck Hoskin was also critical of President Trump, saying he "should not be calling her 'Pocahontas, ' but "should be looking into the needs of Indian country are because the needs are there".
Harvard did not call Warren "a person of color" and hire her to to teach law because of her Native ancestry.
President Donald Trump isn't letting a little thing like DNA get in the way of his never-ending "Pocahontas" taunts against Democratic Sen.
Columbus, Ohio, Is Not Observing Columbus Day This Year
Instead, the city will close its offices on Veterans Day on November 12, according to a report from a local NBC News affiliate. Some say it should be celebrated as Indigenous Peoples Day to recognize that Native Americans were here first.
But Warren had a role in this, too: Journalists in Boston started uncovering evidence that suggested that Warren may have known more about Harvard's promotion of her as Native American than she first let on.
Sen. Lindsey Graham (R-S.C.) weighed in on what a DNA test could potentially reveal about his ancestry on Tuesday's "Fox & Friends", awkwardly quipping: "I'll probably be Iranian. Nothing like that ever happened, that was clearly not the use for it, and so I stopped checking it off", she said. Even they don't want her. Phony! I've been told my grandmother was part Cherokee Indian.
Native Americans also have objected to Trump's "Pocahontas" nickname for Warren.
"If she gets the nomination in the debate where I was going to have her tested", Trump said.
Ross said Warren and Trump should each give that amount to the National Indigenous Women's Resource Center for "making Indigenous ancestry into a campaign prop". "That will not be something I enjoy doing, either". Running for re-election this fall, she also presented herself as someone who was standing up for working people and vulnerable communities.
"I believe that I was recruited at Harvard because I'm a good teacher, and recruited for my other jobs because I do good work", she said.
Trump has bucked decades of precedent by refusing to release the returns.