Ad Nauseam

His primary rules were: never allow the public to cool off; never admit a fault or wrong; never concede that there may be some good in your enemy; never leave room for alternatives; never accept blame; concentrate on one enemy at a time and blame him for everything that goes wrong; people will believe a big lie sooner than a little one; and if you repeat it frequently enough people will sooner or later believe it.

Remind you of somebody?

This was part of a report prepared by the Office of Strategic Services (proto-CIA) during WWII as a personality / psychological profile of Adolf Hitler.