Final answer:
To publish a campaign, a start time, an audience, and at least one piece of content are required, with content being the essential item to actively convey the campaign's message.
Step-by-step explanation:
Before a campaign can be published, it is essential to include a start time, an audience, and at least one piece of content. This could be any form of media, such as images, video, infographics, or text that conveys the message of the campaign and engages the intended audience. Having clear and specific campaign strategies, and understanding the importance of message targeting based on the salient issues of potential supporters, is critical. The campaign must construct a message that is simplified for media consumption but still effectively communicates the candidate's platform. Moreover, a candidate's campaign team must work together to manage the various aspects of the campaign, ensuring that all necessary elements are in place for a successful launch.