American Civil Liberties Union & D. John Sauer

American Civil Liberties Union: The American Civil Liberties Union is leading the legal team representing the children and parents challenging Donald Trump's order, advocating for the preservation of birthright citizenship.

D. John Sauer: D. John Sauer, the top United States — Supreme Court of the United States lawyer for the administration, argued that the 14th Amendment's Citizenship Clause was not intended for children of noncitizens illegally or temporarily in the United States.

American Civil Liberties Union: The American Civil Liberties Union's LGBTQ and HIV Project senior counsel, Jon Davidson, expressed disappointment, calling the ruling a 'heartbreaking setback' for transgender rights.

D. John Sauer: D. John Sauer, the Solicitor General, appealed to the United States — Supreme Court of the United States, arguing for the President's authority over passports and foreign affairs.