campaigning vs candidature

campaigning and candidature both are nouns.

Word	Noun	Adjective	Verb	Adverb
campaigning	Yes	No	No	No
candidature	Yes	No	No	No

As nouns, campaigning and candidature are synonyms defined as:

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

campaigning (noun)	candidature (noun)
the campaign of a candidate to be elected	the campaign of a candidate to be elected