WASHINGTON, D.C. — The Supreme Court heard oral arguments on the legality of President Donald Trump's executive order to end birthright citizenship. Justices expressed skepticism about the order during the proceedings.

Trump issued an executive order directing agencies to end birthright citizenship for children born in the U.S. to noncitizen parents.

Trump left the Supreme Court as it heard arguments defending birthright citizenship.

The 14th Amendment to the U.S. Constitution guarantees that all persons born or naturalized in the U.S. are citizens.