Professor Richard Epstein challenges birthright citizenship under the 14th Amendment. Discover the originalist legal case, Wong Kim Ark, and the Supreme Court debate.
Table of Contents
A Constitutional Myth Challenged
When most Americans think of birthright citizenship — the idea that anyone born on U.S. soil automatically becomes a U.S. citizen — they assume it is an unquestionable constitutional guarantee rooted in the 14th Amendment. But renowned legal scholar Professor Richard Epstein argues in his forthcoming book, The Myth of Birthright Citizenship, that this widely accepted interpretation is historically inaccurate, legally unfounded, and constitutionally unsupportable.
This post unpacks Epstein’s powerful argument, the historical evidence he marshals from Roman law to Blackstone to the Naturalization Acts, and why this debate matters more than ever as the U.S. Supreme Court prepares to rule in Trump v. Barbara — a landmark case that could reshape American citizenship law for generations.
What Is Birthright Citizenship? The Common Understanding
Birthright citizenship — derived from the Latin principle jus soli (“right of the soil”) — holds that any person born within the territory of the United States is automatically a U.S. citizen, regardless of the immigration status of their parents.
This interpretation is widely believed to rest on Section 1 of the 14th Amendment (ratified 1868), which reads:
“All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside.”
For over a century, courts, lawmakers, and administrations have treated this clause as an ironclad guarantee of automatic citizenship by birth. The 1898 Supreme Court ruling in United States v. Wong Kim Ark is most often cited as the definitive precedent.
Epstein says this consensus is built on a myth.
Richard Epstein’s Core Argument: The 14th Amendment’s Two-Track Structure
Epstein begins with a structural observation that most scholars overlook: the 14th Amendment distinguishes between protections for persons and protections for citizens.
The rights to due process and equal protection — the most-cited provisions of the 14th Amendment — apply to all persons within U.S. jurisdiction. Citizenship, however, is a separate category entirely. Epstein argues that conflating these two tracks leads to a fundamental misreading of what the amendment actually guarantees.
“How can you understand what’s going on unless you figure out some meaningful distinction between the person stuff and the citizenship stuff?” — Richard Epstein
This distinction, grounded in Roman and English legal traditions that Epstein studied extensively, is the foundation of his entire argument.
The Naturalization Acts: The Key Evidence Most Scholars Miss
One of Epstein’s most striking contributions is his recovery of the Naturalization Acts — statutes that operated alongside the 14th Amendment and have been largely ignored in the birthright citizenship debate.
The Naturalization Act of 1790 began with the words: “Any free white person may apply to be naturalized as a citizen of the United States.” To obtain citizenship, an applicant had to:
- Renounce allegiance to any foreign sovereign (required by 1795)
- Reside in the United States for at least two years
- Demonstrate good moral character
- Appear before a qualified judicial body
Crucially, the citizenship status of a child was determined by the status of the parent, not by the child’s birthplace alone.
Epstein argues it is logically incoherent to read the 14th Amendment’s citizenship clause as automatically conferring citizenship by birth alone when the concurrent Naturalization Acts imposed a rigorous process. The two statutes must be read in harmony — and when they are, birthright citizenship for children of illegal or temporary aliens disappears from the constitutional framework.
Was Wong Kim Ark (1898) Correctly Decided?
The landmark Supreme Court case United States v. Wong Kim Ark (1898) is the bedrock of the modern birthright citizenship doctrine. The Court held that Wong, born in San Francisco to Chinese immigrant parents, was a U.S. citizen by birth under the 14th Amendment.
Epstein argues the decision was wrongly decided on multiple grounds:
- No common law of naturalization exists. Justice Horace Gray claimed a common law tradition of birthright citizenship. Epstein counters that naturalization has always been a statutory, not a common law, matter — meaning sovereign authority controls who is a citizen.
- Wong’s parents could not be naturalized. At the time, treaties between the U.S. and China explicitly barred Chinese nationals from becoming U.S. citizens. Using Gray’s own logic, Wong’s citizenship status should have followed his parents’ — which was legally blocked.
- Gray invented a non-statutory “domicile” standard. The relevant statutes used the word “resident” — not “domicile.” Domicile implies intent to remain permanently, and under settled law the domicile of a child follows the domicile of the parent. Applying that rule correctly would have denied Wong citizenship.
- Wong traveled under a Chinese passport. He had not renounced loyalty to a foreign sovereign — a requirement since 1795 under U.S. naturalization law.
Despite these flaws, Wong Kim Ark became precedent — and Epstein acknowledges that legal transitions matter. He is not advocating stripping citizenship from anyone already granted it under the old rules. But he argues the precedent should not be extended going forward.
The Historical Foundation: Roman Law, Blackstone, and Local vs. Permanent Allegiance
Epstein’s argument draws on 2,000 years of legal history — an unusual depth for a modern constitutional debate.
In Roman law, Blackstone’s Commentaries, and the writings of 18th-century jurist Vattel, there is a consistent distinction between two types of allegiance:
- Local or temporary allegiance: When a foreigner visits another country, they must obey that country’s laws. But this does not make them or their children citizens.
- Permanent allegiance: This is the deeper bond — exchanged for permanent protection — that defines citizenship. It required a formal act: renouncing prior sovereignty and taking on a new one.
Blackstone is explicit on this point in his Commentaries on the Laws of England, and American courts adopted this framework in the early republic. The idea that merely being born on soil — without any allegiance commitment from the parent — automatically confers citizenship was, Epstein argues, never part of the Anglo-American legal tradition.
The 10-Category Framework: Where Does the Line Fall?
Using a spectrum developed in collaboration with legal writer Jeffrey Varisano, Epstein categorizes individuals along a spectrum of constitutional eligibility:
| # | Category | Covered by 14th Amendment? |
|---|---|---|
| 1 | Freed slaves and their descendants | ✅ Yes — the primary purpose |
| 2 | Natural-born citizens (one or two citizen parents) | ✅ Yes |
| 3 | Naturalized citizens (followed legal process) | ✅ Yes |
| 4 | Legal permanent residents (Wong Kim Ark case) | ⚠️ Disputed by Epstein |
| 5 | Native Americans with tribal allegiance | ❌ Historically excluded |
| 6 | Temporary visa holders (students, tourists) | ❌ No |
| 7 | Expired visa holders | ❌ No |
| 8 | Undocumented / illegal aliens | ❌ No |
| 9 | Prisoners of war / armed invaders | ❌ No |
| 10 | Foreign diplomats and their families | ❌ No |
Epstein argues the 14th Amendment was designed to cover categories 1–3 unambiguously, and that extending it further — particularly to categories 7 and 8 — has no historical or textual basis.
The Supreme Court and Trump’s Executive Order
On January 20, 2025, President Trump signed Executive Order 14160, directing federal agencies to deny citizenship documents to children born in the U.S. to parents who are either undocumented or on temporary visas. Multiple federal courts blocked the order through nationwide injunctions.
On April 1, 2026, the Supreme Court heard oral arguments in Trump v. Barbara. The core constitutional question: does the 14th Amendment’s citizenship clause extend to children of undocumented immigrants?
Epstein filed an amicus curiae brief with the Supreme Court supporting the administration’s position and arguing that the Wong Kim Ark precedent was narrower than commonly interpreted and does not require extending birthright citizenship to children of illegal aliens.
As of May 2026, a ruling is expected by late June 2026.
The Originalism Problem: Why the Debate Is More Complicated Than It Appears
Epstein is sharply critical of how originalism has been wielded in this debate — by both sides.
Advocates of birthright citizenship claim the original meaning of the 14th Amendment guaranteed it for all U.S.-born children. Opponents claim the framers intended to limit citizenship to those with genuine political allegiance.
Epstein argues that both sides are ignoring institutional prescription — the principle that legal institutions, once entrenched through decades of reliance, acquire their own legitimacy even if their origins were flawed. This is why he does not advocate stripping citizenship retroactively from anyone born under the old regime.
But prescription works differently for new applications. For future births to parents with no legal connection to the United States, no reliance interest exists. That, Epstein argues, is where the constitutional and policy correction should apply.
The Numbers: Why This Debate Is Urgent
In 2023 alone, approximately 900,000 birthright citizenships were granted in the United States — nearly 10% of all U.S. births that year. Epstein describes this as “a system run riot,” noting that many of these births are facilitated by brokers and intermediaries who specifically target the citizenship-by-birth policy.
By comparison, virtually every other developed nation — including those in Europe — does not grant automatic citizenship based on birthplace alone. The EU’s failure to distinguish between the free movement of goods and the free movement of people, Epstein argues, offers a cautionary tale for U.S. immigration policy.
Conclusion: Rethinking a Constitutional Assumption
Professor Richard Epstein’s The Myth of Birthright Citizenship is one of the most rigorously argued legal challenges to a widely held constitutional assumption in recent memory. Drawing on Roman law, English common law, the Naturalization Acts, and the structural logic of the 14th Amendment itself, Epstein contends that birthright citizenship for children of illegal and temporary aliens was never part of the American constitutional order — and that the Supreme Court has both the authority and the obligation to correct this misreading going forward.
Whether one agrees with his conclusions or not, the historical depth and legal precision of his argument demand serious engagement. As the Supreme Court prepares to rule in Trump v. Barbara, Epstein’s scholarship will be impossible to ignore.
🔑 Key Takeaways
- Birthright citizenship is not explicitly guaranteed by the plain text of the 14th Amendment, according to Epstein.
- The Naturalization Acts of 1790 and 1795 required renouncing foreign allegiance — a standard that conflicts with automatic jus soli citizenship.
- Wong Kim Ark (1898) was wrongly decided, using a non-statutory “domicile” standard and ignoring treaty bars on Chinese naturalization.
- Blackstone and Roman law consistently distinguished between local (visitor) allegiance and permanent citizenship allegiance.
- 900,000 birthright citizenships were granted in 2023 — nearly 10% of U.S. births.
- The Supreme Court is expected to rule on Trump v. Barbara by June 2026.
- Epstein supports prospective change only — not retroactive stripping of existing citizenship.
📚 Further Reading & Sources
- Richard Epstein Amicus Brief — U.S. Supreme Court
- Brennan Center: Birthright Citizenship Under the U.S. Constitution
- SCOTUSblog: Key Arguments in Trump v. Barbara
- Congress.gov: Birthright Citizenship Litigation Status
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