coattails effect vs upshot

coattails effect and upshot both are nouns.

Word	Noun	Adjective	Verb	Adverb
coattails effect	Yes	No	No	No
upshot	Yes	No	No	No

As nouns, upshot is a hypernym of coattails effect; that is, upshot is a word with a broader meaning than coattails effect:

coattails effect: (politics) the consequence of one popular candidate in an election drawing votes for other members of the same political party
upshot: a phenomenon that follows and is caused by some previous phenomenon

Other hypernyms of coattails effect include consequence, effect, event, issue, outcome, result.

coattails effect (noun)	upshot (noun)
(politics) the consequence of one popular candidate in an election drawing votes for other members of the same political party	a phenomenon that follows and is caused by some previous phenomenon