Slate Mailers & Voter Guide Placements for Ontario campaigns means CA Slates placements that reach high-propensity voters with a third-party endorsement frame — sized to the California voter universe rather than a national template. Ontario sits in California, where slate mailers & voter guide placements is one of the highest-leverage line items in a competitive local budget. Our slate mailers & voter guide placements program supports Ontario candidates running for City Council and School Board races, plus county and ballot-measure efforts in California.
Last reviewed: 2026-07-02