LTI - Lingua Tertii Imnperii, Victor Klemperer, was a Professor of Literature at the Dresden University of Technology who lived in Dresden throughout WW2. He wrote The Language of the Third Reich: A Philologist s Notebook post-WW2. He also kept a daily diary of the Nazi years in which he made observations of the use and progression of demagogic propaganda produced by the Nazis in Germany as the nation sank into destruction.
There are many, many examples of how Donald Trump has used lies, self praise, deflection, attacks and diabolically black or celestially white descriptions to indoctrinate his cult, in a fashion similar to the LTI.