Per Fox News:
The IRS has submitted several sworn declarations to a federal district court in an attempt to explain the missing emails of former agency official Lois Lerner, as part of a case brought against the agency by [Judicial Watch] a conservative watchdog group.
In the declarations, agency technology officials insisted they did everything they could to fix and recover data from the hard drive of Lerner, who is a central figure in the investigation into the agency’s targeting of conservative groups. However, they said their efforts were fruitless, and some of Lerner’s emails were lost.
These sworn declarations came from five IRS officials: Aaron G. Signor, John H. Minsek, Stephen L. Manning, Timothy P. Camus, and Thomas J. Kane.