Guide · California 2026

The political cheats campaigns run on ballot measures

Ballot-measure campaigns don't just argue — they run plays. Here are the deliberate tactics showing up on California's 2026 ballot, each with a real example and a source.

1. The poison-pill countermeasure

Instead of just opposing a measure, a campaign qualifies rival measures designed to cancel it out. In 2026, the billionaire-backed committee "Building a Better California" is backing Propositions 41 and 42 as countermeasures to Proposition 40's one-time billionaire tax — either countermeasure could block the tax from taking effect if it gets more yes votes than Prop 40. When you see a cluster of measures about the same topic, check who funded each one.

2. The Trojan-horse scare ad

Take one real provision and inflate it into a threat against everyone. Ads against Prop 40 warn the billionaire tax is a "Trojan horse" letting lawmakers expand it to all Californians "with the stroke of a pen." The amendment power the ads point to is real — but legally constrained to the act's purposes, and election-law experts say it is "not unlimited." CalMatters' verdict: "the truth lies somewhere in between." Ask of every scare ad: what does the text actually allow?

3. The astroturf front group

Committees pick civic-sounding names that hide who's paying. "Building a Better California" sounds like a neighborhood group; its primary funder is Google co-founder Sergey Brin ($102 million), joined by at least 18 other billionaires. Always scroll past the committee name to the top donors.

4. The bundled unrelated provision

Sneak an unrelated policy into a popular measure so it rides along. MALDEF alleges Proposition 4 — sold as public campaign financing — bundles an unrelated provision tripling penalties for immigrants who donate to political campaigns, calling it "gratuitous scapegoating." (Presented as MALDEF's allegation; always check the provision breakdown yourself.)

5. The ballot-label fight

The few words on the ballot itself are a battleground. The California Taxpayers Association sued over Attorney General Bonta's Prop 41 ballot label, arguing it omitted the measure's State Auditor audit mandate; the court held labels need only be "non-misleading, not precise." Lesson: the label is a summary, not the measure — read the full text.

6. The last-minute ad blitz

Flood the zone right as ballots arrive. Reform California launched a $1 million TV and digital blitz for Prop 39 timed to mail-ballot delivery; opposition to Prop 40 began TV ads in August and has spent over $195 million. Late money targets undecided voters before they look closely — do your research before the blitz.

How to protect yourself

For every measure: read the provision breakdown, check who funds each side, and run any ad claim through our ad fact-checks. Then take the questionnaire and vote your values — not their script.

Sources

See the ad fact-checks

Prop 40: ads & claims All propositions