GOOD COP/BAD COP

Negotiators
often play good cop/bad cop. But in U.S. foreign policy the president
is usually the good cop. Watch how Trump undermines and demeans his own
Sect'y of State

https://thinkprogress.org/trump-north-korea-waste-of-time-64017e571523/  
[Trump] "I told Rex Tillerson, our wonderful Secretary of State, that he is wasting his time trying to negotiate with Little Rocket Man . . . Save