U.S. Deputy Treasury Secretary Michael Faulkender is leaving the government after less than five months, the Treasury Department said on Friday, another abrupt departure by a senior official in the young Trump administration.

Deputy Treasury Secretary Michael Faulkender is stepping down from his post, after having played what Treasury Secretary Scott Bessent said was a “critical role” at the department.

Faulkender is the second Senate-confirmed official to leave the Treasury Department this month, following the departure of IRS Commissioner Billy Long, who said he was being tapped as ambassador to Iceland.