Elizabeth Warren has released DNA results on her ancestry. According to the results, she is roughly 1% Native American (between 1/64th and 1/1,024th).
Original 2012 report: https://web.archive.org/web/20130903193315/http://www.boston.com/news/local/massachusetts/articles/2012/04/30/elizabeth_warren_was_listed_as_a_minority_professor_in_law_directories_in_the_80s_and_90s/
Results report: https://www.bostonglobe.com/news/politics/2018/10/15/warren-addresses-native-american-issue/YEUaGzsefB0gPBe2AbmSVO/story.html
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