Sen. Elizabeth Warren, D-Mass., likely didn’t think she’d be defending her supposedly “vindicating” DNA report nearly one week after its release, but that’s exactly what she had to do this weekend during a debate against her re-election opponent, Rep. Geoff Diehl, R-Mass.

The Massachusetts senator was asked by a moderator Sunday evening why she decided to submit to a DNA test after claiming for several years that she didn’t need to take one to prove her supposed Cherokee Indian ancestry.