President Trump has vowed to clamp down on immigration and undo Biden-era policies that he said were too permissive and blamed for allowing a large influx of undocumented immigrants. Here’s what we know about his policy changes.

Immigrants and advocacy groups nationwide are scrambling to prepare for the waves of raids President Trump has promised under his plan to deport millions of people unauthorized to stay in the U.S. Why it matters: Confusion and persistent rumors about how the raids will be carried out — and what will happen to those detained by immigration agents — are leading some anxious immigrants to refuse to go to work or send their children to schools,