8 April 2019
U.S. Homeland Security Secretary Kirstjen Nielsen is leaving her position, President Donald Trump said in a tweet on Sunday. Her departure was first reported by CBS News, which said it was unclear whether Nielsen's departure would be voluntary.
In another tweet, Trump said Kevin McAleenan, the current U.S. Customs and Border Protection commissioner, would become acting DHS secretary. Nielsen has held the position since December 2017. As it includes immigration and customs enforcement, her department is responsible for carrying out some of Trump's most contentious policies as he has sought to cut back on the number of Mexicans and Central Americans entering the United States without proper documentation.