Turkish President Recep Tayyip Erdogan on Wednesday asked forgiveness over his past alliance with US-based Islamic preacher Fethullah Gulen whom Ankara blames for last month’s attempted coup. In a rare show of public humility, Erdogan said he had failed to see the “true face” of Gulen, who cooperated closely with the Turkish strongman while he was mayor of Istanbul in the 1990s and after his Justice and Development Party (AKP) came to power in 2002.