Chad Wolf will resign from his position as acting secretary for the Department of Homeland Security, leaving the Trump administration nine days ahead of the president’s departure from office, a senior DHS official told the Washington Examiner on Monday.

Wolf, 44, will leave the department at 11:59 p.m. and will be replaced by Federal Emergency Management Agency Administrator Pete Gaynor, according to an internal letter he sent employees Monday evening. Wolf was the fifth person to lead the DHS under the Trump administration and was in his position for 14 months.