By Hillary Chabot

Elizabeth Warren’s tumultuous Senate campaign was back on defense yesterday over her purported Native American roots after documents showed that a second law school touted her minority status.

The University of Pennsylvania, where Warren worked from 1987 to 1994, listed her as a minority in a “Minority Equity Report.” The report comes after Harvard Law School claimed Warren as a diversity hire in 1996.

Campaign officials, who have struggled to move beyond the issue, were forced once again to insist that Warren never used her lineage for personal gain as the scandal stretched into its second week.

“At every law school where Elizabeth was recruited to teach, it has been made absolutely clear she was hired based on merit, on her accomplishments and ability,” spokeswoman Alethea Harney said in a statement.