It is the usual, he is the best, baddest, smartest, most successful thing to hit the planet earth, rhetoric. No surprise there. He just makes shit up as he goes along and when he realizes that he may have just said the wrong thing, does a 180 degree turn....in the same sentence.
The thing that worries me most though is when he said
"........but the wrong person coming in after me, sitting right at this desk, can destroy it very quickly if they don't do the right thing."
That statement right there is the single most worrying thing to me. Is he alluding to the fact that he is never going to vacate the seat because no-one else can do the job as well as he can? Is that the angle he is going to take in order to convince his followers that he should stay and never leave?