This word fits politicians all over the place, be they Republicans, Libertarians or Democrats.
Demagogue: n. a person, especially an orator or political leader, who gains power and popularity by arousing the emotions, passions, and prejudices of the people.
(in ancient times) a leader of the people.
verb (used with object), dem·a·gogued, dem·a·gogu·ing.
to treat or manipulate (a political issue) in the manner of a demagogue; obscure or distortwith emotionalism, prejudice, etc.
verb (used without object),dem·a·gogued, dem·a·gogu·ing.
to speak or act like a demagogue.
demagogue. (2019). Retrieved from: https://www.dictionary.com/browse/demagogue