After the Trump administration flew more than 230 men to a maximum-security prison in El Salvador, we partnered with Venezuelan journalists to gather records and exclusive U.S. government data. Reporter Perla Trevizo breaks down the dizzying first year of Trump’s mass deportation campaign. Perla Trevizo of ProPublica and The Texas Tribune contributed narration and reporting. Mauricio Rodríguez Pons of ProPublica contributed reporting and graphics. This article first appeared on The Texas Tribune.