Adolf Hitler was considered a demagogue because of his ability to incite the people.
The demagogue incensed the audience by explaining all the ways the opponent would ruin their lives.
Hitler was a famous demagogue who manipulated an entire nation with his passionate oratory, playing on their prejudices to achieve power. The demagogue condemned his opponents as immoral and uncaring.
When it has a subject, verb, punctuation, capitalization, a predicate, and a complete thought. A sentence is a sentence when it is handed down by a judge (or a magistrate).