The president of Iran has to share his power with many other factions all vying to put their opinions forward and thus Iran gives the outward face of being rather schizoid to the rest of the world.
What he has to say may well sit well with one faction but not another which will lead to him sometimes appearing to contradict himself or even to back pedal on certain view points and then to reverse back again as he tries to juggle all these differing factions.
Sounds familiar doesn't it?