Elizabeth Warren impressed me

[Angrboda]

In as much as we can determine Native American ancestry from genetic markers, the tests do support it.  

No, 1 ancestor 8 generations ago doesn't support her claims.

Specifically which claim are you referring to here? The newsletter which Christopher Child reported would make Warren 1/32 Native American if her great-great-great grandmother were full blooded Native American. However that's not necessarily what the newsletter indicates, but only that she was listed as Cherokee on a marriage document, which could easily be true if she was only half-blooded. If that were the case, that would make Elizabeth Warren 1/64 Native American (presumably) which falls within the parameters of the DNA test which indicated she had between 1/64th and 1/1024th Native American ancestry (~ Boston Globe). The article also notes that it is possible that the test missed an ancestor, and that Bustamante was regarded as one of the leading DNA experts in the world. Rather than get ahead of myself, I'll wait for you to produce the claim that you are disputing. However, if it is the claim that Warren's great-great-great-grandmother, O.C. Sarah Smith, was at least partially Native American, it would appear that you are simply wrong on that.