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President Donald Trump criticized Senator Elizabeth Warren Tuesday morning in a series of tweets over DNA test results that showed “strong evidence’’ she had a Native American in her family tree dating back 6 to 10 generations.

Trump, again using the slur “Pocahontas” to describe the Massachusetts Democrat, called the test “bogus” and said that it showed she may be 1/1,024 Native American.

The generational range based on the ancestor that the DNA report identified suggests Warren is between 1/64th and 1/1,024th Native American. According to Warren’s family lore, her great-great-great-grandmother, O.C. Sarah Smith, was at least partially Native American. If she were fully Native American, that would make Warren up to 1/32nd native.


The Boston Globe reported on the results of the DNA test on Monday.

The analysis of Warren’s DNA was done by Carlos D. Bustamante, a Stanford University professor and expert in the field who won a 2010 MacArthur fellowship, also known as a genius grant, for his work on tracking population migration via DNA analysis.

Trump also cited a statement issued by the Cherokee Nation, which said Monday afternoon that “a DNA test is useless to determine tribal citizenship.”

Warren is not enrolled in any tribes, and told a Native American group as much during a February speech.

“I understand that tribal membership is determined by tribes — and only by tribes,” she said at the time.

Trump also accused Warren of using her claims to Native American heritage to get ahead in her career, which Warren has vehemently denied.

A Globe review on Warren’s rise in academia published in September found clear evidence that her Native American ancestry was not a factor in her hiring at Harvard, and that the people who hired her at other law schools during her career saw her as a white woman.


Annie Linskey of the Globe staff contributed. Christina Prignano can be reached at christina.prignano@globe.com. Follow her on Twitter @cprignano.