Jin Park remembers where he was when Donald Trump announced his presidential bid in June, 2015. He was alone in his Harvard dorm room and watching Trump on TV.
"When Mexico sends its people, they're not sending their best," Trump told the crowd at New York's Trump Tower, "They're bringing drugs. They're bringing crime. They're rapists. And some, I assume, are good people."
Then he proposed a wall along the United States border with Mexico.