American Hustle
Name me a better con than the FBI ABSCAM (Abdul Scam) operation from the late 70’s to 80’s. Yeah, the real one that the FBI used which American Hustle is based on. So the Feds went ahead and used a real con man to track public officials that accepted bribes. Either to fast-track citizenship for an Arab sheikh (who in reality was a fake the Feds created) or just any other illegal favors in general. Turns out that nine people were willing to do whatever, including multiple congressman, a mayor, and a senator.

American Hustle