Arizona Democrats have pledged to resist Trump’s efforts, setting up conflict between local and federal authorities.

The promise of mass deportations was central to Trump’s campaign and helped propel him to victory on Nov. 5. In one of his first interviews post-election, Trump told NBC News “there is no choice" but to forcibly expel millions of people living in the U.S. without documentation.

As Trump pursues mass deportations, he plans to do more workforce raids. But the raids don't typically yield many deportations, experts say.