The job of the president in Israel is ceremonial not to be a politician and try and deal with political issues of the day instead he should be kissing babies which is what previous presidents did. Peres is a politician at heart and he doesn't like the constraints put on him by the office of presidency and very often he forgets his role and acts like the PM which is the job he really wants. What he probably will be is the first president to die in office as he is now 90 and if he does live to serve a full term I don't think he will know what to do with himself after that because no party will ever take him on and you can only serve 1 term a president.
Al-Shabab militants overrun African Union base in southern Somalia (AP)
from the article: Shimon Peres: The last president of Israel