Prince Harry’s residency in the USA would be under threat if Donald Trump wins the presidential election in November, according to royal commentator Jennie Bond. This comes as Prince Harry is facing more controversy over his US immigration records, and whether the details of his drug use should be kept private. The Heritage Foundation, a conservative think tank, argues that he cannot legally have entered the US because he admitted to taking illegal drugs in his best-selling memoir, Spare. In a recent interview with ABC’s Good Morning America, Prince Harry was questioned on whether he would bec…