You're crawfishing. In the video, Warren states that her mother was part Cherokee. Whether her mother is "full blooded" or not makes no difference. She infers that her mother was enough that there was some stigma and consequence attached to it. She also names the Delaware tribe.
Also,
http://thefederalist.com/2018/10/15/...she-was-lying/
We don’t fully know how important Warren’s claims were in her career. There is, however, much evidence that her self-driven minority claims in the 1990s were helpful. Warren, who once maintained her family had “high cheekbones like all of the Indians do,” was listed as a “minority faculty member” by The University of Pennsylvania. She had the school switch her designation from white to Native American. Warren self-identified as a “minority” in the legal directory, and Harvard Law School preposterously listed her as one of the “women of color” the school had hired. On job applications, Warren was very specific in claiming that she had Cherokee and Delaware Indian ancestry.
The video only proves how wrong you are. You're welcome.