And we thought by law Erdoğan could not run for presidency again, and yet did (also the first time because of his questionable university diploma but that is a story for another night kids)
Bottom line is Erdoğan now elects all the university rectors, including Marmara University's at the time which Erdoğan claims to have graduated from. Soon as there were disputes to his claims of his university degree, Marmara University's rector himself published online Erdoğan'a diploma which suffered from multiple inconsistencies, such as wrong department name. So it was thought that he prepared that diploma on orders from Erdoğan (it is very common now in Turkey for university rectors to receive orders from Erdoğan). Since then some other people claimed that they were class mates with Erdoğan. So it seems like it is an issue still hanging there and unlikely to be resolved now.