Someone who has a very thorough knowledge of Cherokee genealogy has already put the issue to bed: http://www.pollysgranddaughter.com/p/elizabeth-warren-information.html
This blogger is a very good genealogist, and is a Cherokee herself. Bottom line: Warren is no Indian.
FYI, her maiden name is Herring. I shall henceforth refer to her as “Red Herring” both to remind everyone of her politics, and also as a reminder that she isn’t a squaw (i.e. red).
Yes, I saw that. Red Herring is a great nickname!