Justice Amy Coney Barrett dismantled the Trump administration’s legal foundation for denying birthright citizenship during Supreme Court arguments Wednesday, exposing fatal flaws in the government’s interpretation of the 14th Amendment that legal experts say guarantee defeat. Barrett Exposes Slavery Citizenship Trap The conservative justice challenged Solicitor General John Sauer’s theory that birthright citizenship requires parents to be legally domiciled in America. Barrett noted enslaved people brought forcibly to America never intended to remain, making domicile impossible to establish. Under Sauer’s own logic, children of formerly enslaved people would not qualify as citizens, directly contradicting the 14th Amendment’s primary purpose of overturning Dred Scott. Trump walked out mid-argument and later posted on Truth Social that America is stupid for protecting this constitutional right. Two Competing Citizenship Theories Clash Legal scholars distinguish between citizenship based on soil, known as territory of birth, versus citizenship based on blood descent. Professor Evan Bernick of Northern Illinois University explained Barrett clearly grasps this distinction. The framers deliberately chose the simpler soil-based approach to prevent complicated questions about parental status from arising. The government’s attempt to introduce domicile requirements adds layers of complexity the Constitution never intended, Bernick noted during analysis on Slate’s legal podcast. Government Attorney Struggles With Exceptions When Justice Barrett pressed government attorney Gene Wang about whether Congress can create new exceptions to birthright citizenship, he failed to articulate a coherent constitutional theory. Wang argued the set of exceptions is closed and Congress cannot expand them, but Barrett remained unsatisfied with his explanation. The justice wanted textual and historical support, not merely policy preferences. Wang’s inability to ground his position in constitutional text signaled weakness in the administration’s broader legal strategy. Constitutional Principles At Stake The case centers on Trump’s executive order attempting to deny citizenship to American-born children of certain immigrants. A Supreme Court majority expressed deep skepticism toward this action during Wednesday’s session. Barrett’s pointed questions about the slavery precedent appeared to lock in the government’s loss, according to multiple court observers. The 14th Amendment states all persons born in the United States and subject to its jurisdiction are citizens, language legal scholars say leaves little room for the administration’s interpretation. Sources Slate: Supreme Court analysis: Amy Coney Barrett destroyed the case against birthright citizenship.