demagogue
definition
a political leader who seeks support by appealing to popular desires and prejudices rather than by using rational argument
example
The charismatic demagogue stirred the crowd's emotions, promising to address their grievances without presenting any concrete plans.
synonyms
politicianrabble-rouserfirebrand
word origin — The term 'demagogue' comes from the Greek 'demagogos', meaning 'leader of the people'. It is composed of 'demos' meaning 'people' and 'agein' meaning 'to lead'.