DONALD TRUMP April 7, 2019 8:54 pm Homeland Security Sec. Nielsen Resigns Amid Border Turmoil President Donald Trump says Homeland Security Secretary Kirstjen Nielsen is leaving her job amid growing frustration by the administration over the number of southern border crossings. US & World Videos 1:20 Gigi Hadid wows in sweeping Met Gala look 1:34 Nicole Kidman floored over Olivia Rodrigo's AMC ad tribute 1:12 Ariana Grande channels Glinda at 2024 Met Gala 3:45 Gabrielle Union and Dwyane Wade's daughter had cutest reaction to mom's Met Gala dress 1:35 Rita Ora reveals Taika Waititi's last-minute change to her Met Gala dress: ‘Thank God'