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

The justices will consider the constitutionality of President Trump’s executive order ending birthright citizenship for the children of undocumented people and some temporary foreign visitors.

© Haiyun Jiang 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.