EXCLUSIVE: Meet Hunter Biden's new wife! Just weeks after splitting up with his brother Beau's widow, the vice president's son secretly marries world-traveling South African activist. Joe Biden's son Hunter, 49, married Melissa Cohen, from South Africa, in Los Angeles in mid-May. Hunter used an instant marriage company to marry Cohen, and the hasty vows hint that Joe and the rest of the Bidens were not in attendance for the big day. A friend of Cohen said she lived in Los Angeles and the newlyweds met in May, having a whirlwind romance and getting matching tattoos. On Sunday, Jill Biden...