Many Trump supporters  either can't read or if they can, don't have the mental acuity to interpret what they read or hear.  Like sheep they'll believe Trump not to trust the press because he says so or get their news from the National Enquirer or right wing talk radio.  Fanatically they have set themselves to believe only what Trump tells them  having  long ago forfeited their capability for independent thought. They wouldn't recognize a nuance if it hit them in the face.