Stop by any group of farmworkers here, and you’re likely to hear La Campesina. That’s as intended—the network was founded in 1983 by Cesar Chavez and the United Farm Workers with the goal of reaching farmworkers in the fields, and it is operated today by the Cesar Chavez Foundation. But where Chavez originally dreamed of programming that would serve the needs of Spanish-speaking immigrants by educating them about workers’ rights, today’s political climate demands something different to serve the immigrant audience. Though it’s happened largely out of the view of the mainstream news media, throughout Western states, La Campesina has adapted to the political moment by becoming something like the immigrant community’s version of Radio Free Europe—a voice of idealistic defiance broadcasting in hostile territory—at a time of deep partisan animus toward Latinos. Now, with nine stations across four states—from Yuma, Arizona, in the south to the tri-cities of Washington in the north, broadcasting in both AM and FM—it reaches more than 1 million regular listeners, many of them immigrants working in hotels, restaurants, and manufacturing or food-processing plants.

While AM radio is often thought to be the turf of conservative talking heads, La Campesina’s KNAI is frequently the top-rated AM station in metropolitan Phoenix. In April, it had double the ratings of KFYI, the local station that carries Rush Limbaugh, Sean Hannity and Glenn Beck, competing against those broadcasting titans with regional Mexican music, resistance-themed commentary en Español, and practical life tips for getting by as a Latino immigrant in Trump’s America.