President Donald Trump has quickly mobilized wide swaths of the federal government to arrest and detain undocumented immigrants in the United States, part of a broader strategy to amass a large enforcement machine.

Local law enforcement agencies play a limited role in immigration law, but that might change during Trump's promised mass deportation operation.

A county in New York City’s Long Island suburbs will be teaming up with federal authorities in President Donald Trump’s crackdown on immigrants who are in the U.S. illegally.

Some people caught in Trump administration immigration operations have already been released back into the United States on a monitoring program.

Some of the 8,000 migrants arrested under the Trump administration's deportation crackdown have already been released back into the U.S., according to a report. Agents from Immigration and Customs Enforcement have conducted raids in cities such as New York,

A protest of President Donald Trump’s immigration policies Monday evening in east Las Vegas erupted into chaos, ending with five arrests and two damaged police cruisers, according to the Metropolitan Police Department.

Large groups of people demonstrated against President Donald Trump's immigration policies. Most of the protests took place on Monday for "A Day Without Immigrants." The movement encouraged many people to stay home from work,