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.

President Donald Trump's administration has directed federal prosecutors to criminally investigate state and local officials who attempt to resist its immigration enforcement efforts, according to a memo to Justice Department staff seen by Reuters.

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.

We’re tracking the executive orders Trump signed on his first day in office, just hours after being inaugurated as president.