demagogue - noun
An orator or politician who gains popularity and power by arousing emotions, passions, and prejudices.
Note: Also used as a verb.
We shall achieve industrial democracy because we shall steer a similar middle course between the extreme individualist and the Socialist, between the demagogue who attacks all wealth and who can see no wrong done anywhere unless it is perpetrated by a man of wealth, and the apologist for the plutocracy who rails against so much as a restatement of the eighth commandment [against stealing] upon the ground that it will "hurt business."
—Theodore Roosevelt History as Literature (1913)
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