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.

A memo from the acting deputy attorney general instructs officials to identify state and local laws and policies that “threaten to impede” the Trump administration's immigration efforts.

"My office is a law enforcement entity. We are going to follow the Constitution and uphold the law," Krasner said as Trump officials threatened consequences for uncooperative local officials.

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.

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,

By Sarah N. Lynch, Andrew Goudsward and Gabriella Borter WASHINGTON (Reuters) -President Donald Trump's administration has directed U.S. prosecutors to criminally probe local officials who resist immigration enforcement efforts,