machine politician vs politico

machine politician and politico both are nouns.

Word	Noun	Adjective	Verb	Adverb
machine politician	Yes	No	No	No
politico	Yes	No	No	No

As nouns, politico is a hypernym of machine politician; that is, politico is a word with a broader meaning than machine politician:

machine politician: a politician who belongs to a small clique that controls a political party for private rather than public ends
politico: a person active in party politics

Other hypernyms of machine politician include pol, political leader, politician.

machine politician (noun)	politico (noun)
a politician who belongs to a small clique that controls a political party for private rather than public ends	a person active in party politics