On April 10, 2019, U.S. Customs and Border Patrol (CBP) Commissioner Kevin McAleenan was sworn in as Acting Secretary of the Department of Homeland Security (DHS).
McAleenan’s promotion comes after the departure of Secretary Kirstjen Nielsen on April 7, 2019, and his replacement for CBP Commissioner has not yet been named.
The DHS press release may be found here:
https://www.dhs.gov/news/2019/04/10/message-acting-secretary-kevin-k-mcaleenan