Trump issued an executive order limiting birthright citizenship to only the children of legal permanent residents or American citizens. Longstanding precedent, based on judicial rulings and the 14th Amendment, has granted U.S. citizenship to babies born on U.S. soil, with the exception of the kids of diplomats.

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.

Mr. Trump is planning to attempt to deny birthright citizenship to the children of immigrants who are in the U.S. illegally, according to the incoming officials. The U.S. government has long interpreted the U.S. Constitution to mean that those born on American soil are citizens at birth, regardless of their parents' immigration status.