Why it matters: The largest number of single-day arrests announced by Immigration and Customs Enforcement since Trump took office last Monday and declared a national emergency on the U.S.-Mexico border is a clear sign that his administration is stepping up efforts crack down on undocumented immigrants.

The Trump administration launched an immigration enforcement blitz in Chicago on Sunday that includes several federal agencies that have been granted additional authorities to arrest undocumented immigrants in the US,

Top Trump administration officials, including “border czar” Tom Homan and the acting deputy attorney general, visited Chicago on Sunday to witness the start of ramped-up immigration enforcement.

The Trump administration is empowering federal immigration officers to consider whether to strip temporary legal status from migrants who entered through former President Joe Biden's signature "parole" programs in an effort to ramp up deportations to record levels,

The far-reaching move empowers federal immigration agencies to target a population of migrants who came to the U.S. with the government's permission.

President Donald Trump signed more executive orders aimed at shutting down the southern border, but the details on how migrants would be blocked from crossing remain unclear.