"Senator Elizabeth Warren has released a DNA test that provides “strong evidence’’ she had a Native American in her family tree dating back 6 to 10 generations...."

Good on Warren, but this headline is inaccurate; having an indigenous native american somewhere in your family tree does not make you "Native American" at all.

"Most tribes require a specific percentage of Native “blood,” called blood quantum, in addition to being able to document which tribal member you descend from. Some tribes require as much as 25% Native heritage, and most require at least 1/16th Native heritage, which is one great-great grandparent."

https://en.wikipedia.org/wiki/Native_American_recognition_in_the_United_States