Partisan actors in the United States have recently politicized trust in the administration of elections. In combination with inflexible partisan polarization, politicized election administration could undermine an essential condition of democracy: the peaceful transfer of power following elections. Can messaging about trust in elections break through partisan polarization? Partnering with election officials from Los Angeles County, Colorado, Georgia, and Texas, we used messaging experiments with nearly 8,500 Americans following the 2022 US midterm elections to measure the impact on trust. We find that state and local election officials can be strongly effective at increasing trust in their own state elections. Our pooled estimate suggests that one 30-second official message increases trust in local elections by about one-fifth of the pre-treatment difference between Democrats and Republicans. Additionally, videos explaining protections on election integrity in Arizona and Virginia increase trust in elections administered outside respondents’ own state. Our results suggest that election officials can break through partisan politics and play an important role in rebuilding trust in the democratic process.