The groups had initially sought to block the new executive order in the existing Barbara case and had secured a major Supreme Court victory in June

The latest filings aim to protect people subjected to the president’s new executive order, which was signed in early August and again targets birthright citizenship.

Birthright citizenship remains the law in the U.S. This page provides an explainer on birthright citizenship, case developments, and Trump's executive orders.

The groups asked a federal court to make it unquestionably clear that the citizenship of babies covered by that class-action lawsuit is protected despite this new executive order.

The orders follow the Supreme Court’s June decision in Trump v. Barbara, which reaffirmed the Fourteenth Amendment and invalidated the January 20, 2025 Executive Order on birthright citizenship.

Supreme Court rules Trump Executive Order limiting birthright citizenship is unlawful

In a major victory, the U.S. Supreme Court today ruled that President Donald Trump’s executive order seeking to restrict birthright citizenship is unconstitutional.

The Supreme Court heard oral arguments today in Trump v. Barbara, a nationwide class action on behalf of children who would be denied citizenship under an executive order issued by President Trump.