Republican presidential candidate Donald Trump did not take kindly in a radio interview on Thursday to being asked to identify the affiliations of various militant leaders in the Middle East, saying the host was asking "a gotcha question".Discussing Islamist extremism, conservative talk-radio host Hugh Hewitt told Trump he was looking for the next president to know who the leaders of major militant groups were, naming the heads of Islamic State, Hezbollah, al-Qaida and its Nusra Front wing in Syria."Do you know the players without a scorecard, yet, Donald Trump?" asked Hewitt, who will co-moderate the next official Republican presidential debate on Sept. 16 in California."No, you know, I'll tell you honestly, I think by the time we get to office, they'll all be changed. They'll be all gone," Trump replied.