Donald Trump told a crowd at The Economic Club of New York Thursday that his campaign team was taking photos at Arlington Cemetery to mark the “celebrating” of the families of those who died in an attack on American soldiers in Afghanistan three years ago. Saying that he was at Arlington “four days ago” — though in fact it was a week earlier on Aug. 26 — Trump hit back at criticism that he was illegally using the burial ground for political campaigning. “They were celebrating three years, honoring their children, and yeah, that’s right. They call them their children,” Trump said of the parents…