On 19 September, Turkish government officials met with retired US Army Lt. General Mike Flynn, former CIA Director James Woolsey, and others to discuss legal and potentially illegal ways such as enforced disappearance for removing Gülen from the US. In March 2017, Flynn registered as a foreign agent for his 2016 lobbying work on behalf of the government of Turkey.
Rudy Giuliani privately urged Donald Trump in 2017 to extradite Gülen.
In March 2017, former CIA Director James Woolsey told the Wall Street Journal that he had been at a 19 September 2016 meeting with then Trump campaign advisor Mike Flynn with Turkey's foreign minister, Mevlüt Çavuşoğlu, and energy minister, Berat Albayrak, where the possibility of Gulen's abduction and forced rendition to Turkey was discussed. Although no concrete kidnapping plan was discussed, Woolsey left the meeting, concerned that a general discussion about "a covert step in the dead of night to whisk this guy away" might be construed as illegal under American law. A spokesman for Flynn denied Woolsey's account, telling Business Insider that no nonjudicial removal had been discussed at the meeting.
In July 2017, one year after the anti-Erdoğan putsch, Gülen wrote: "Accusations against me related to the coup attempt are baseless, politically motivated slanders." In the 1990s Gulen had been issued a special Turkish passport as a retired holder of the religious post, in the Turkish state religion of Sunni Islam, of mufti; in 2017 this passport was revoked. Unless Gulen travels to Turkey by the end of September 2017, he will be stateless. On 26 September 2017, Gulen asked for a United Nations commission to investigate the 2016 coup attempt.
On 28 September 2017, Erdoğan requested the U.S. to extradite Gülen in exchange for American pastor Andrew Brunson, under arrest in Turkey on charges related to Brunson's alleged affiliation with "FETO" (the Gulen movement); Erdoğan said, "You have a pastor too. Give him to us.... Then we will try [Brunson] and give him to you...." "You have a pastor too. ... You give us that one and we'll work with our judiciary and give back yours." The Federal judiciary alone determines extradition cases in the U.S. An August 2017 decree gave Erdogan authority to approve the exchange of detained or convicted foreigners with people held in other countries. Asked about the suggested swap on 28 September 2017, U.S. State Department spokeswoman Heather Nauert said: "I can't imagine that we would go down that road. ... We have received extradition requests for him [Gulen]." Anonymous US officials have said to reporters that the Turkish government has not yet provided sufficient evidence for the U.S. Justice Department to charge Gulen.
In 2017, Amnesty International and Human Rights Watch separately issued statements urging governments to avoid extraditions to Turkey.