Sen. Elizabeth Warren, D-Mass., couldn’t possibly have thought this week would end with her apologizing to the Cherokee Nation. But at the rate things are going, that’s exactly what she’ll have to do to get out of the mess that she has created for herself.

The Massachusetts senator kicked off Monday by sharing the results of a DNA test she and her fans in the news media say vindicates her from criticisms that she tried to benefit undeservedly from claiming minority status when she taught at Harvard Law School. Warren has claimed for years that she is of Cherokee Indian descent.