An embattled University of Texas regent is standing firm, despite calls for his resignation.

According to his lawyer, UT Regent Wallace Hall sent a letter to Chairman Paul Foster today, in response to Foster’s suggestion that he step down. The contents of the letter haven’t been released, but Hall made his opinions clear in a statement released afterward.

“Which approach benefits the UT System, asking the Board of Regents to address wrongdoing, or asking regents who uncover the wrongdoing to resign? Will the public ever know the truth about problems in our institutions if legislators are allowed to impeach Board members who reveal them?”

Hall is accused of abusing the power of his office while investigating UT President Bill Powers. He’s also the subject of an investigation by the Travis County District Attorney’s Office for his handling of confidential student information. Last week, Board of Regents Chairman Paul Foster asked Hall to step down but stopped short of a board vote of confidence, which could force Hall out.

Hall’s response comes two days before a House panel is expected to draw up articles of impeachment, which they could then send to the full House. If lawmakers follow through, Hall would be the first non-elected official to be removed from office in state history.