Moderators specifically asked about Trump's remarks after the father spoke out against the Republican nominee at the Democratic National Convention, and how this affected Trump's much-touted "Muslim ban."
In his answer, Trump claimed that, if he were president, the Khan family would still have their son.
"Captain Khan is an American hero," Trump said. "If I were president at that time, he would be alive today. Because unlike her, who voted for the war without knowing what she was doing, I would not have had our people in Iraq. Iraq was a disaster. So, he would have been alive today."