Thomas Harker is now the acting undersecretary of defense (comptroller), Defense News reported, citing a DOD spokesperson. Harker will also continue serving as Navy comptroller.

His predecessor, Elaine McCusker, was also in the position in an acting capacity and had been nominated to the position full-time. She later resigned when emails surfaced in which she appeared to question the legality of withholding aid to Ukraine, the central issue in President Trump’s impeachment trial.

Harker is a 20-year veteran of the Coast Guard and has held financial management roles in the department of Veterans Affairs and Housing and Urban Development.

Getty Images photo by Samuel Corum