Automatic citizenship for people born in the United States is guaranteed by the 14th Amendment to the Constitution.

The U.S. is one of more than 30 countries with unrestricted birthright citizenship. Trump said in a recent interview that he plans to revoke the right.

Donald Trump’s team is crafting an executive order to end birthright citizenship for the children of undocumented immigrants, a monumental move the president-elect’s allies say is a key step in their long-term strategy: getting the issue before the Supreme Court.

Donald Trump has said he intends on ending birthright citizenship, which would require overturning the 14th Amendment. But even by attempting to overturn it– which would trigger scores of lawsuits – the question could appear in front of the Supreme Court,

Donald Trump’s incoming border czar doubled down on the president-elect’s promise to end birthright citizenship when he returns to the White House and said Wednesday night he doesn't believe it is even constitutionally protected.