Turkey has revoked the passport of leading Erdogan critic, Muslim cleric Fethullah Gulen, who is living in self-imposed exile in Pennsylvania. It is likely that Turkish officials will soon call for the extradition of Gulen — a request the U.S. is expected to reject. Gulen and his supporters are credited with raising a corruption scandal that broke in late 2013 and threatened to take down ruling AKP officials and possibly Erdogan. The AKP suppressed the corruption probe, though, and Turkish authorities raided and arrested media linked to Gulen.