How four reporters are examining the most secretive branch of government — and the nine justices who shape the law.

© Eric Lee for The New York Times

President Trump appeared in court, watching as members of the court’s conservative majority raised questions about his efforts to limit birthright citizenship.

© Anna Rose Layden for The New York Times

As the justices prepare to hear a landmark case about birthright citizenship, their family stories are a reminder that the law has shaped who can be an American.