Answer:
those above him/her couldn't serve
Explanation:
Attorney General is seventh in the line, so it is unlikely that something like this can happen. Still, in the case it happens it will happen only when those above him are not able to perform their duty. Of course this never happened in history.
The USSR extended its sphere of influence into Yugoslavia and Albania by supporting the communist parties in those countries. Yugoslavia separated from the USSR later on after a fight between those who supported the USSR way of Communism, that is Stalin, and those who supported the socialistic way, that is Tito.