In recent remarks to the press, President Donald Trump restated his intention to impose 25% tariffs on U.S. imports from Mexico and Canada as early as Feb. 1. His reasoning: "vast" illegal immigration and "massive" amounts of fentanyl coming to the U.

Hours after being sworn in, President Trump fulfilled his campaign promises to crackdown on illegal immigration. The President declared an emergency at the southern border, and as a result, there have already been many changes to policy.

ICE has take a spotlight role in the wake of plans in Trump's administration for mass deportations. Here's what you need to know about the agency.