Pariah by Dan Fesperman.
Fesperman is probably the best espionage writer of the 21st Century.
This book is a crazy comedy. A Hollywood comic was about a year into his first Congressional term when an onset meltdown tape comes out and destroys both careers. He's isolating on an island when the CIA comes to him and asks him to meet his No. 1 fan; the brutal dictator of a small European country.
Manges to be WTF and realistic at the same time.