Untangling campaign finance
California campaign-finance data is public. It's also very hard to follow, so we built a tool to help. Here is who is paying for both sides of Proposition 40, the billionaire tax.
The Money Behind California's Wealth-Tax Fight
The SEIU-UHW union and the Building a Better California PAC have invested over $275M in the wealth-tax campaign
(as of 10/6/26)
About democracyGPS:
We don't support or favor any political party. We work for all voters. We run surveys that find ideas most people agree on, and we make public campaign-finance data easier to follow, so you can see who is paying to influence your elections. democracyGPS is run by democracyGPS Action, a nonpartisan nonprofit.
Our surveys: Taxes (latest), Immigration, Abortion, & Assault Weapons
How we work:
Find common ground. You share your ideas about what's important. We find the ideas that most people agree on, across all groups. Then we tell Congress, and keep asking until it listens or voters choose leaders who will.
Follow the money. We trace political donations from donors through committees to candidates and ballot measures, using public Cal-Access filings. Explore California 2026 races.
Our surveys: Taxes (latest), Immigration, Abortion, & Assault Weapons
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