WASHINGTON, United States (AFP) –US President Donald Trump on Sunday announced Homeland Security Secretary Kirstjen Nielsen, the front-line defender of the administration’s controversial immigration policies, would leave her position. “Secretary of Homeland Security Kirstjen Nielsen will be leaving her position, and I would like to thank her for her service,” Trump tweeted. He added US Customs and Border Protection Commissioner Kevin McAleenan would become acting secretary. Nielsen initially joined the Trump administration in January 2017 […]