Khizr Khan, the father of Army Captain Humayun Khan—killed by a speeding car bomber after sending his unit and civilians to take cover, posthumously awarded the Bronze Star and Purple Heart —stood by his wife and issued a very direct challenge to Donald Trump. Specifically, to read the Constitution. Social networks lit up immediately afterwards.

Khan began by discussing his belief in the country he immigrated to, and his son's sense of service before turning to the man who has proposed a ban on all Muslim immigration. The other big moments of the evenings came when he told Trump "you have sacrificed nothing" for America and "Hillary Clinton was right when she called my son the best of America.' If it was up to Donald Trump, he never would have been in America.