By “extradite” they mean kidnap:
NEW: Giuliani pushed Trump to extradite a Muslim cleric, a top priority of Erdogan. Trump repeatedly wanted to do it, but other advisers were appalled & blocked. Aides worried Giuliani was doing Turkey’s bidding. W/@CarolLeonnig, @nakashimae & @thamburger: https://t.co/MFKEfmuujd
— Josh Dawsey (@jdawsey1) October 16, 2019

Was Gulen, who’s been living in Pennsylvania for many, many years, the guy who instigated the attempted coup in Turkey in 2016 meant to bring down Erdogan?
Probably and that makes him a very dangerous man.