DEFINITION:

dem·a·gogue
ˈdeməˌɡäɡ/
noun
a political leader who seeks support by appealing to popular desires and prejudices rather than by using rational argument.
synonyms: rabble-rouser, agitator, political agitator, soapbox orator, firebrand, fomenter, provocateur

USED IN A SENTENCE:

“he was drawn into a circle of campus demagogues”

ILLUSTRATION: