Rupert Murdoch (News Corp./Fox) and talk radio owners have known this psychology for many decades and have used it very effectively. A normal, mentally healthy and well-educated populace would have discredited their dogma from the beginning and they would not have survived. They also use additional tools such as sex appeal, sensationalism and consumerism to maintain an audience.
Our primitive brain succumbs to repetition and all the while our modern brain tries to fight that with facts, logic and reason. Makes for a discomforting, unconscious, continuous internal mental battle. Those of us on the "truth" side feel the pain. Those who are in the right-wing bubble are quite comfortable because they are not exposed to counter-facts, logic and reason.
If we could get all Congress critters that took Norquist's anti-tax pledge to take a Pro-Truth Pledge referenced in that article (and be faithful to it), we might have a functioning government again.
See: https://www.protruthpledge.org/
I am a dreamer, LOL. 
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