President Trump signed an order that would treat the U.S.-born children of undocumented immigrants as noncitizens, effectively denying them birthright citizenship. The Constitution could stand in the way.

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.

The move by an agency within the Department of Homeland Security was part of a broader effort by the Biden administration to strengthen oversight and set clear guidelines for handling intelligence.

In November, Rudy Giuliani repeated accusations against the women at least four times, after Donald J. Trump won the 2024 presidential election.