demagogue vs political leader

demagogue and political leader both are nouns.

Word	Noun	Adjective	Verb	Adverb
demagogue	Yes	No	No	No
political leader	Yes	No	No	No

As nouns, political leader is a hypernym of demagogue; that is, political leader is a word with a broader meaning than demagogue:

demagogue: a political leader who seeks support by appealing to popular passions and prejudices
political leader: a person active in party politics

Other hypernyms of demagogue include pol, politician, politico.

demagogue (noun)	political leader (noun)
a political leader who seeks support by appealing to popular passions and prejudices	a person active in party politics