1- Ahmadinejad is a populist politician [1], highly educated and obsessed with media [2]. Unlike many other leaders, he rarely loses his control and enjoys embarrassing foreign journalists by leading the conversation in the direction he chooses, as seen in his interview with Mike Wallace two years ago. Remember your interview with him last year [3]; you need to do more research on your interviewee in order to not be surprised like you were before.
2- Watch your past interview with President Ahmadinejad again and again. Don't use a rude tone in order to appear aggressive. Your aggressiveness as a journalist will be apparent through smart, clear, challenging questions that force him to give clear and concise answers.
3- It's his answers, not your questions, that are important. If he starts responding to your questions with his own questions, it indicates that he does not take you seriously; you have already lost control over the interview. Watch his other interv... >>>
Links:
[1] //www.time.com/time/world/article/0,8599,1665579,00.htm
[2] //latimesblogs.latimes.com/babylonbeyond/2008/02/ahmadinejad-pla.html
[3] //video.google.com/videoplay?docid=-6956834874797200586&q=Brian Williams Mahmoud Ahmadinejad &ei=GsGKSIOVM5CwrALfwNmsAQ