*Trump needs to get them fighting amongst themselves.*
It’s best applied to the Middle East.
It wasn’t the intent, but when Churchill got fed up with the failures of MI6 and set up Special Operations Executive, the primary “war aim” of MI6 became getting rid of SOE (which they achieved when Labour was elected in 1945).
Also, Saddam dealt with possible loyalty issues with his intelligence services by creating new rival services.
And they spent most of their time spying on each other.
The USA may have 16, or whatever, intelligence services but Trump should create another and get them all fighting amongst themselves.