political campaign vs candidature

political campaign and candidature both are nouns.

Word	Noun	Adjective	Verb	Adverb
political campaign	Yes	No	No	No
candidature	Yes	No	No	No

As nouns, political campaign and candidature are synonyms defined as:

political campaign and candidature: the campaign of a candidate to be elected

Other synonyms of political campaign include campaigning, candidacy, electioneering.

political campaign (noun)	candidature (noun)
the campaign of a candidate to be elected	the campaign of a candidate to be elected
a race between candidates for elective office