State and local leaders across the country are bracing for a tidal wave of aggressive immigration policies and possible mass deportations that President Donald Trump has vowed to enact in the hours and days following his inauguration Monday.

U.S. President Donald Trump on Monday kicked off his sweeping immigration crackdown, tasking the military with aiding border security, issuing a broad ban on asylum and taking steps to restrict citizenship for children born on American soil.

The president has issued directives to expedite the removal of millions of undocumented immigrants from the U.S., which has immigrant groups bracing for raids.