Meet Kirstjen Nielsen, the former Homeland Security chief who faced controversy over family separations at the US-Mexico
President Donald Trump announced on Sunday that Kirstjen Nielsen is leaving her position as Homeland Security Secretary. Nielsen tweeted shortly after that she handed in her resignation to the president
The eight Ivy League schools are among the most prestigious colleges in the world. They include Brown, Harvard, Cornell, Princeton, Dartmouth, Yale, and Columbia universities, and the University of Pennsylvania.