Sen. John McCain, in an interview about the Vietnam War, appeared to take a swipe at President Donald Trump when he criticized people from "the highest income level" who avoided the draft by finding a doctor who "would say that they had a bone spur."

Trump, who attended the private New York Military Academy as a young man, received five military draft deferments during the Vietnam War, including one medical deferment after he was diagnosed with bone spurs in his foot.