demagogue

1. (derogatory) A political orator or leader, especially in a democratic system, who gains favor by pandering to or exciting the passions and prejudices of the audience rather than by using rational argument.Examples: "1938, O'Neill, translating The Knights by Aristophanes, 424 BC, lines 191-193, A demagogue must be neither an educated nor an honest man; he has to be an ignoramus and a rogue."; "If the majority of our fellow-citizens are more susceptible to the slogans of fear and race hatred than to those of peaceful accommodation and mutual respect among human beings, our political liberties remain at the mercy of any eloquent and unscrupulous demagogue."; "What is a demagogue? He is a politician skilled in oratory, flattery and invective; evasive in discussing vital issues; promising everything to everybody; appealing to the passions rather than the reason of the public; and arousing racial, religious, and class prejudices—a man whose lust for power without recourse to principle leads him to seek to become a master of the masses. He has for centuries practiced his profession of 'man of the people'. He is a product of a political tradition nearly as old as western civilization itself."derogatory

2. (historical) A leader of the people.historical