Money Is Pouring Into San Diego Politics. Where Is It Coming From?

Ahead of the 2026 midterm elections, money is pouring into American politics at levels never seen before .

Here in San Diego County, millions of dollars have already been spent on races and ballot measures countywide. KPBS and Voice of San Diego poured over campaign finance filings from several different reporting agencies to compile a list of the biggest spenders and donors impacting San Diego regional politics.

Our top spenders – who spent the most on campaigns – were the California Democratic Party, the “Yes on B” campaign for Measure B, and a super PAC called California Leads. The top donors – who contributed the most to campaigns – included the Laborers International Union of North America Local 89, the California Association of Realtors, and Sharp HealthCare.