It takes money to run a campaign, and people give money to the candidate they believe will best serve their interests if elected.
Looking at the affiliations of individuals and groups who have contributed to each of the candidates for 3rd District Supervisor tells a lot about what these candidates can be expected to support if elected.
Data from: https://www.southtechhosting.com/SantaBarbaraCounty/CampaignDocsWebRetrieval/Search/FilerForms.aspx?y=0