This is a psychological tactic to make her supporters automatically reject anything Trump says without even actually considering what he is saying.
It makes her supporters impervious to being persuaded.
“This is a psychological tactic to make her supporters automatically reject anything Trump says without even actually considering what he is saying.”
Bingo.
At this point, it’d hardly surprise if the major networks ran a chyron below Trump that said, “He’s lying. Disregard.”