A panel of federal appeals judges were doubtful Tuesday of what additional information could be gleaned about Hillary Clinton’s emails if the former secretary of state were to sit for a deposition in a public records case.

Judges Thomas Griffith, Cornelia Pillard and Robert Wilkins of the U.S. Court of Appeals for the D.C. Circuit heard the arguments after U.S. District Judge Royce Lamberth of the District of Columbia ruled last year that Clinton could be deposed in a Judicial Watch Freedom of Information Act lawsuit for records relating to the 2012 Benghazi terrorist attack. Clinton’s lawyers at Williams & Connolly, led by David Kendall, intervened and petitioned the circuit to vacate Lamberth’s order.