President Donald Trump is set to attend Supreme Court oral arguments on his executive order aimed at ending birthright citizenship for children born in the U.S. to undocumented or temporarily present immigrants, marking the first time a sitting president has personally attended such a session. The case challenges the longstanding interpretation of the Fourteenth Amendment’s Citizenship Clause, which has historically granted citizenship to nearly all individuals born on U.S. soil, regardless of their parents' status. With a conservative majority on the Court, including three Trump appointees, a ruling expected by July could significantly impact immigration law and constitutional citizenship rights.