The order will deploy 1,500 troops to build physical barriers, but they will not be used for law enforcement, a military official says.

Mexico's President Sheinbaum says she will work with Trump on deportations, border issues and cartels, but laughs at his 'Gulf of America' order.

More is coming, but many directives will take time to be implemented or will face political, legal or practical obstacles.

Washington — President Trump invoked muscular presidential powers to begin a sweeping crackdown on immigration following his inauguration on Monday, tasking the military with border enforcement, moving to designate cartels and gangs as terrorist groups, shutting down asylum and refugee admissions and attempting to terminate birthright citizenship.

The president’s Day 1 actions included directives that fly in the face of legal limits on involving the military in domestic operations and the constitutional guarantee of birthright citizenship.

On his first day back in office, President Donald Trump signed around 10 executive orders to restrict immigration to the United States. “With these actions, we will begin the complete restoration of America and the revolution of common sense,” he said during his inauguration speech. “It’s all about common sense.”

In line with Trump’s edict, CNN’s Natasha Bertrand, Priscilla Alvarez, Haley Britzky and Oren Liebermann report. They’re expected to beef up existing operations to support Customs and Border Protection,

Justice Department employees were told to support Donald Trump’s immigration agenda by sharing data collected on people in the country illegally with federal immigration enforcers.

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