Yes, the lap dogs MSM thought it was true and rushed to get an apology from Trump.
Back around the time my daughters were applying to colleges, I tried to validate the legend in my ex’s family that there was Cherokee blood coursing through their veins. The closest I came to achieving that goal was a claim by one of their ancestors who took the family through the Gap in about 1820 that he was half Cherokee, a claim that was hotly disputed by known descendants of the Cherokee in question. If true, my daughters would be either 1/128 or 1/256 Cherokee depending on a number of factors. Needless to say, they did not claim that they were Native Americans on their applications. However, the point here is that I took the time and expended the effort to do real research to validate the claim and identify an actual human being in their family tree - something that Ms. Warren has apparently not done,