On July 5, Trump had previously offered to give Warren - whom he calls "Pocahontas - $1 million that she could provide to any charity if she took a DNA test to show that she has Native American ancestry".
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.
The results, as shared with The Boston Globe, reportedly reveal "strong evidence" the MA senator had a Native American ancestor dating back six to 10 generations.
That meshes with Warren's narrative that her great-great-great-grandmother, O.C. Sarah Smith, was at least partially Native American.
"When I chose to run for Senate in 2012, I never thought that my family's Native American heritage would come under attack and my dead parents would be called liars", Senator Warren said in a statement.
This means she could be 1/32nd Native American, or just 1/512th Native American if the ancestor is 10 generations back.
"And Trump can say whatever he wants about me", she adds.
Warren's video makes clear that it is in part a response to Trump's attacks, opening with a clip of the president mocking Warren as "Pocahontas".
"The 2016 Democratic nominee for president", Linskey wrote, "chafed at releasing personal information and was dogged throughout her campaign by her use of a private server while she was secretary of state".
"She used the fact that she was Native American to advance her career", Trump has said.
"I will give you a million dollars to your favorite charity, paid for by Trump, if you take the test and it shows you're an Indian", Trump told the audience. "What do the facts say?" That could further excite her critics instead of placating them.
"The facts suggest that you absolutely have a Native American ancestor in your pedigree", Bustamante replies.
Bustamante was careful to say that his lab is "confident it is not an error", to say Warren has Native American ancestry, but the imprecision of genetic testing will no doubt soon be a subject of national debate should the senator run for the presidency.
The results were released on Monday morning, bolstering rumors that Warren may plan to run for president in 2020. "It has personnel files. I know that everybody likes to pick their junk science or sound science depending on the conclusion, it seems some days", Conway told reporters.