The ruling left unsettled the question of whether children born to immigrants without full legal status in the United States are entitled to automatic citizenship. So what happens now?

A U.S. Supreme Court ruling last week could enable a Trump executive order restricting birthright citizenship. It could change who is considered a U.S. citizen, depending on what state a child is born in and their parents' immigration status.

Effective immediately, the Trump administration can begin planning for how it would implement an end to birthright citizenship.