He 'campaigned for president/governor/mayor'. = He 'campaigned' for the presidency/governorship/mayoralty. [=he tried to be elected president/governor/mayor]
The group launched/mounted/led a 'campaign' to protect the area from commercial development.
The university is organizing a 'campaign' to attract a more diverse student population.
(..) - We are selling mouthwash. - Are we authorized to do that? Very funny. We can get in trouble selling pharmaceuticals in a campaign office. My uncle's in jail because of that. It's not really jail. Living with his wife, anything would be jail. - Look over there. - I love you. (..)1976 Taxi Driver
(..) We don't have Coca-Cola. Royal Crown Cola is all we got. $.. Yes, well... you delivered two boxes. I think it's a total of campaign buttons. Now, on all the ones we had before, our slogan is "We are the people"... and "are" is underlined. These new buttons have "we" underlined. (..)1976 Taxi Driver