There are some people who cannot ever imagine anything but infinite competition with a former rival, and there are some people who forge enduring friendships in the unique bond that intense rivalry yields. From the outside, maybe it does seem unlikely that they are "strong friends," as the President said, but from the inside of their relationship, into which they generously gave us this precious glimpse, it does not seem an unlikely friendship but an inevitable one.
Part One of the interview can be viewed here. Part Two can be viewed here. The full transcript is here.