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.

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.

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,

President Donald Trump signed a historic number of executive orders on Day 1. Here’s what he did, and how it reflects his goals for the economy and more.

“Today, I will sign a series of historic executive orders. With these actions, we will begin the complete restoration of America, and the revolution of common sense,” said Trump, who at midday Monday became only the second U.S. president to serve nonconsecutive terms, after Grover Cleveland in the late 1800s.