Turkish President Recep Tayyip Erdogan calls on his conservative supporters to mobilize on Sunday. He must close his campaign with a prayer at Hagia Sophia, the basilica he has transformed into a mosque.

This election promises to be the most difficult after two decades in power. The authoritarian drift of the last decade, and even more so since the abortive coup of 2016, has dented the credit and popularity of the head of state who asserts great achievements and development, of his country since 2003. But he admitted that he was struggling to seduce young people, more than 5.2 million of whom will vote for the first time.