Clinton’s acceptance of an invitation from Rep. Trey Gowdy, who is leading the investigation into the events of Sept. 11, 2012 — when four Americans, including U.S. Amb. Chris Stevens, were killed in Benghazi, Libya — came the same day that new questions emerged about her use of a personal email server for official State Department business.

Gowdy had initially requested private meetings with the former secretary of state, but Clinton’s camp had long insisted on a public hearing.

An inspector general review found that at least four emails Clinton had kept on her server were classified “secret” at the time — a finding that calls into question her assertion in March that she took care to avoid sending classified materials. The Clinton camp’s statement on Saturday morning did not directly address this finding.