The revenue earned from the tour of paintings was still not enough to ensure its endowment. By fall 1998, Glanton and fellow board member Niara Sudarkasa were suing each other. Lincoln University, which according to the Barnes Foundation's indenture, controlled four of the five seats on the board of trustees, began an investigation into the Foundation's finances. The Foundation's board believed that a similar investigation was warranted for activities during Glanton's tenure as president. In 1998 the board of directors began a forensic audit conducted by Deloitte, which was kept private for three years, eventually released, and criticized Glanton's expenses and management.