When the Constitution Speaks Clearly
The language of the Fourteenth Amendment is plain, precise, and unequivocal when it states, “All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States.” In Trump v. Barbara, 609 U.S. ___ (2026), the Supreme Court held that the constitutional guarantee of birthright citizenship extends to children born in the United States to parents unlawfully or temporarily present here.
That should have ended the case.
It did not.
The separate opinions reveal fundamentally different judicial philosophies. Some Justices concluded that the Citizenship Clause does not mean what it plainly says. The question is what principles of constitutional interpretation made that conclusion possible.
The issue extends beyond immigration. It concerns whether judicial philosophy can become a justification for declining to enforce constitutional limitations upon governmental power.
History teaches that constitutional government rarely disappears overnight. It erodes incrementally as courts become progressively less willing to enforce constitutional limitations upon the political branches. No constitutional democracy can remain free once its courts cease to impose meaningful constitutional limitations upon governmental power.
One Constitution. Six Opinions.
Nine Justices wrote six opinions interpreting a single sentence in the Constitution.
Chief Justice Roberts wrote the majority opinion, joined by Justices Sotomayor, Kagan, Barrett, and Jackson. Justice Jackson filed a separate concurrence. Justice Kavanaugh concurred in the judgment and dissented in part. Justice Thomas dissented, joined by Justice Gorsuch. Justices Alito and Gorsuch filed separate dissents.
The majority interpreted the Citizenship Clause according to its text, history, and judicial precedent. Its analysis examined the English common-law rule of birthright citizenship, the repudiation of Dred Scott v. Sandford, 60 U.S. (19 How.) 393 (1857), the Civil Rights Act of 1866, ch. 31, 14 Stat. 27, and United States v. Wong Kim Ark, 169 U.S. 649 (1898).
The majority concluded that birth within the United States ordinarily confers citizenship, subject to narrow historical exceptions involving foreign sovereign authority. The President cannot create additional exceptions by Executive Order.
The Concurring Opinion of Justice Jackson
Justice Jackson joined the majority but wrote separately to emphasize that the Citizenship Clause was adopted to prevent government from determining citizenship according to the status of a child’s parents.
Her opinion emphasizes the historical purpose of the Fourteenth Amendment. The Citizenship Clause did more than repudiate Dred Scott. It prevented future governments from creating new classes of persons born in the United States who could nevertheless be denied citizenship.
Justice Jackson viewed the Executive Order as an attempt to exercise authority that the Citizenship Clause withheld from the political branches. Her concurrence reflects a judicial philosophy that treats constitutional guarantees as enduring limitations upon governmental power, beyond the reach of ordinary legislation or executive action.
The Dissent by Justice Thomas
Justice Thomas dissented on the ground that the original meaning of the Citizenship Clause makes parental domicile and political allegiance essential to citizenship. He rejected the majority’s conclusion that birth within the territorial jurisdiction of the United States ordinarily establishes citizenship regardless of the immigration status or domicile of the child’s parents.
Justice Thomas distinguished the English common-law doctrine of citizenship by birthplace from the American conception of citizenship following independence. Under English common law, birth within the sovereign’s territory ordinarily established allegiance to the Crown. Justice Thomas maintained that the American conception rejected that relationship between sovereign and subject in favor of membership in a political community. In his interpretation, being subject to American law while physically present within the country does not necessarily establish the political allegiance required by the Citizenship Clause.
His historical analysis emphasized the Civil Rights Act of 1866 and the debates preceding adoption of the Fourteenth Amendment. He interpreted the Civil Rights Act’s exclusion of persons subject to a foreign power as evidence that Congress understood citizenship to require a permanent political connection to the United States. He maintained that the Citizenship Clause incorporated that understanding while repudiating Dred Scott v. Sandford and securing citizenship for formerly enslaved persons born within the American political community.
Justice Thomas also disputed the majority’s interpretation of United States v. Wong Kim Ark. He emphasized that Wong Kim Ark’s parents had established permanent residence in the United States. In his view, the decision established citizenship for a child born to domiciled foreign parents but did not resolve the constitutional status of children whose parents were temporarily present in the country.
He examined citizenship law and its administration during the decades following ratification of the Fourteenth Amendment. He relied upon judicial decisions, congressional enactments, executive practices, and contemporary legal scholarship as evidence that citizenship by birth was understood to require parental domicile.
Justice Thomas raised separate objections concerning the Court’s authority to grant relief. He questioned whether the requirements of standing were satisfied for the nationwide class and whether the Executive Order could properly be invalidated in every possible application. Those objections concerned the constitutional limitations upon federal judicial power independently of his interpretation of citizenship.
The Dissent by Justice Gorsuch
Justice Gorsuch joined Justice Thomas’s dissent but wrote separately to emphasize that the Citizenship Clause recognizes citizenship for children born in the United States to parents who have established their permanent home here, regardless of their citizenship, race, religion, or national origin. He considered that interpretation consistent with United States v. Wong Kim Ark, whose parents had established permanent residence in the United States. Because he regarded the Executive Order as constitutional in at least some applications involving temporary foreign visitors, he concluded that the challenge seeking to invalidate the Order in every possible application should fail.
Justice Gorsuch nevertheless questioned whether unlawful immigration status necessarily prevents parents from establishing domicile in the United States. He observed that every person must have a domicile somewhere and questioned where parents who had made the United States their permanent home could be domiciled instead. He left that question unresolved because he considered it unnecessary to decide the challenge before the Court.
The Dissent by Justice Alito
Justice Alito dissented separately, concluding that the Citizenship Clause requires more than birth within the territorial boundaries of the United States. He maintained that citizenship requires allegiance to the United States unqualified by obligations to a foreign sovereign. In his interpretation, the constitutional phrase “subject to the jurisdiction thereof” requires a political relationship that cannot be established by physical presence alone.
Justice Alito relied upon the Civil Rights Act of 1866, which recognized citizenship for persons born in the United States who were not subject to a foreign power. He interpreted the Citizenship Clause, adopted shortly afterward, as incorporating substantially the same requirement. He also relied upon the congressional debates preceding adoption of the Fourteenth Amendment and the historical distinction between territorial jurisdiction and political allegiance.
His interpretation of United States v. Wong Kim Ark emphasized that Wong Kim Ark’s parents had established permanent residence in the United States. He maintained that the decision did not establish citizenship for every child born within American territory regardless of the parents’ relationship to the country. Unlike Justice Thomas, who emphasized parental domicile, Justice Alito placed particular weight upon foreign nationality and the obligations accompanying it.
Justice Alito examined the nationality laws of other countries and the consequences of modern immigration patterns. He argued that children who acquire foreign nationality and corresponding obligations at birth are not necessarily subject to American jurisdiction within the meaning of the Citizenship Clause. He nevertheless distinguished constitutional citizenship from citizenship conferred by statute, recognizing Congress’s authority to address the status of children born in the United States who do not qualify for citizenship under his constitutional interpretation.
Justice Alito also concluded that the challenge to the Executive Order should fail because the plaintiffs sought to invalidate it in every possible application. In his view, the Order was constitutional in at least some circumstances, and that conclusion was sufficient to defeat the facial challenge.
The Separate Opinion of Justice Kavanaugh
Justice Kavanaugh concurred in the judgment but disagreed with the majority’s constitutional reasoning. He concluded that the Executive Order violated federal law, although it did not violate the Fourteenth Amendment.
Justice Kavanaugh relied upon Section 1401(a) of Title 8 of the United States Code, which grants citizenship at birth to persons born in the United States and subject to its jurisdiction. Congress adopted language previously interpreted by the Supreme Court in United States v. Wong Kim Ark. Applying the principle that Congress ordinarily incorporates an established judicial interpretation when it adopts the same statutory language, he concluded that the statute did not permit the President to create additional exceptions to birthright citizenship.
Justice Kavanaugh nevertheless distinguished the original meaning of the Citizenship Clause from its application to circumstances that developed after ratification. He concluded that the Constitution permitted Congress to recognize additional exceptions consistent with that original meaning, even though existing federal law did not establish them.
In his interpretation, Congress possessed constitutional authority to establish exceptions that the President could not impose by Executive Order. The Order was unlawful because it conflicted with the federal statute, not because the Constitution prohibited Congress from adopting such exceptions.
Judicial Restraint Does Not Mean Judicial Abdication
Judicial restraint is an important constitutional principle.
The Supreme Court should respect the authority the Constitution delegates to the Legislative and Executive branches of government and should decide no more than is necessary to resolve the controversy before it. But judicial restraint does not justify declining to enforce constitutional limitations upon governmental power.
The six opinions in Trump v. Barbara demonstrate how different principles of constitutional interpretation can produce fundamentally different conclusions about the same constitutional language. History, precedent, constitutional structure, and judicial philosophy may assist the Justices in determining what the Constitution means. None can become an independent source of constitutional authority.
Judicial philosophy is a method of interpretation, not a source of governmental power or a justification for enlarging it. Historical analysis may illuminate constitutional meaning, but it should not become a means of adding limitations to constitutional guarantees.
The Supreme Court possesses neither the power of the purse nor the power of the sword. Its authority rests upon the willingness of the Nation to accept and enforce its judgments. The faithful exercise of judicial power is indispensable to constitutional government. The Constitution was written not merely to establish a government but to limit its power.
Constitutional limitations do not cease to exist when the Supreme Court declines to enforce them. But their protection becomes uncertain, and the governmental power those limitations were intended to restrain becomes correspondingly greater.
Permission to Repost. You may reproduce this article in its entirety on social media, blogs, and other websites without requesting additional permission, provided the article is reproduced in full without alteration, identifies Victor John Yannacone, Jr. as the author, and includes a prominent link to the original article on this website.
Birthright Citizenship and the Limits of Constitutional Interpretation
July 3, 2026 | Constitutional Law
When the Constitution Speaks Clearly
The language of the Fourteenth Amendment is plain, precise, and unequivocal when it states, “All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States.” In Trump v. Barbara, 609 U.S. ___ (2026), the Supreme Court held that the constitutional guarantee of birthright citizenship extends to children born in the United States to parents unlawfully or temporarily present here.
That should have ended the case.
It did not.
The separate opinions reveal fundamentally different judicial philosophies. Some Justices concluded that the Citizenship Clause does not mean what it plainly says. The question is what principles of constitutional interpretation made that conclusion possible.
The issue extends beyond immigration. It concerns whether judicial philosophy can become a justification for declining to enforce constitutional limitations upon governmental power.
History teaches that constitutional government rarely disappears overnight. It erodes incrementally as courts become progressively less willing to enforce constitutional limitations upon the political branches. No constitutional democracy can remain free once its courts cease to impose meaningful constitutional limitations upon governmental power.
One Constitution. Six Opinions.
Nine Justices wrote six opinions interpreting a single sentence in the Constitution.
Chief Justice Roberts wrote the majority opinion, joined by Justices Sotomayor, Kagan, Barrett, and Jackson. Justice Jackson filed a separate concurrence. Justice Kavanaugh concurred in the judgment and dissented in part. Justice Thomas dissented, joined by Justice Gorsuch. Justices Alito and Gorsuch filed separate dissents.
The majority interpreted the Citizenship Clause according to its text, history, and judicial precedent. Its analysis examined the English common-law rule of birthright citizenship, the repudiation of Dred Scott v. Sandford, 60 U.S. (19 How.) 393 (1857), the Civil Rights Act of 1866, ch. 31, 14 Stat. 27, and United States v. Wong Kim Ark, 169 U.S. 649 (1898).
The majority concluded that birth within the United States ordinarily confers citizenship, subject to narrow historical exceptions involving foreign sovereign authority. The President cannot create additional exceptions by Executive Order.
The Concurring Opinion of Justice Jackson
Justice Jackson joined the majority but wrote separately to emphasize that the Citizenship Clause was adopted to prevent government from determining citizenship according to the status of a child’s parents.
Her opinion emphasizes the historical purpose of the Fourteenth Amendment. The Citizenship Clause did more than repudiate Dred Scott. It prevented future governments from creating new classes of persons born in the United States who could nevertheless be denied citizenship.
Justice Jackson viewed the Executive Order as an attempt to exercise authority that the Citizenship Clause withheld from the political branches. Her concurrence reflects a judicial philosophy that treats constitutional guarantees as enduring limitations upon governmental power, beyond the reach of ordinary legislation or executive action.
The Dissent by Justice Thomas
Justice Thomas dissented on the ground that the original meaning of the Citizenship Clause makes parental domicile and political allegiance essential to citizenship. He rejected the majority’s conclusion that birth within the territorial jurisdiction of the United States ordinarily establishes citizenship regardless of the immigration status or domicile of the child’s parents.
Justice Thomas distinguished the English common-law doctrine of citizenship by birthplace from the American conception of citizenship following independence. Under English common law, birth within the sovereign’s territory ordinarily established allegiance to the Crown. Justice Thomas maintained that the American conception rejected that relationship between sovereign and subject in favor of membership in a political community. In his interpretation, being subject to American law while physically present within the country does not necessarily establish the political allegiance required by the Citizenship Clause.
His historical analysis emphasized the Civil Rights Act of 1866 and the debates preceding adoption of the Fourteenth Amendment. He interpreted the Civil Rights Act’s exclusion of persons subject to a foreign power as evidence that Congress understood citizenship to require a permanent political connection to the United States. He maintained that the Citizenship Clause incorporated that understanding while repudiating Dred Scott v. Sandford and securing citizenship for formerly enslaved persons born within the American political community.
Justice Thomas also disputed the majority’s interpretation of United States v. Wong Kim Ark. He emphasized that Wong Kim Ark’s parents had established permanent residence in the United States. In his view, the decision established citizenship for a child born to domiciled foreign parents but did not resolve the constitutional status of children whose parents were temporarily present in the country.
He examined citizenship law and its administration during the decades following ratification of the Fourteenth Amendment. He relied upon judicial decisions, congressional enactments, executive practices, and contemporary legal scholarship as evidence that citizenship by birth was understood to require parental domicile.
Justice Thomas raised separate objections concerning the Court’s authority to grant relief. He questioned whether the requirements of standing were satisfied for the nationwide class and whether the Executive Order could properly be invalidated in every possible application. Those objections concerned the constitutional limitations upon federal judicial power independently of his interpretation of citizenship.
The Dissent by Justice Gorsuch
Justice Gorsuch joined Justice Thomas’s dissent but wrote separately to emphasize that the Citizenship Clause recognizes citizenship for children born in the United States to parents who have established their permanent home here, regardless of their citizenship, race, religion, or national origin. He considered that interpretation consistent with United States v. Wong Kim Ark, whose parents had established permanent residence in the United States. Because he regarded the Executive Order as constitutional in at least some applications involving temporary foreign visitors, he concluded that the challenge seeking to invalidate the Order in every possible application should fail.
Justice Gorsuch nevertheless questioned whether unlawful immigration status necessarily prevents parents from establishing domicile in the United States. He observed that every person must have a domicile somewhere and questioned where parents who had made the United States their permanent home could be domiciled instead. He left that question unresolved because he considered it unnecessary to decide the challenge before the Court.
The Dissent by Justice Alito
Justice Alito dissented separately, concluding that the Citizenship Clause requires more than birth within the territorial boundaries of the United States. He maintained that citizenship requires allegiance to the United States unqualified by obligations to a foreign sovereign. In his interpretation, the constitutional phrase “subject to the jurisdiction thereof” requires a political relationship that cannot be established by physical presence alone.
Justice Alito relied upon the Civil Rights Act of 1866, which recognized citizenship for persons born in the United States who were not subject to a foreign power. He interpreted the Citizenship Clause, adopted shortly afterward, as incorporating substantially the same requirement. He also relied upon the congressional debates preceding adoption of the Fourteenth Amendment and the historical distinction between territorial jurisdiction and political allegiance.
His interpretation of United States v. Wong Kim Ark emphasized that Wong Kim Ark’s parents had established permanent residence in the United States. He maintained that the decision did not establish citizenship for every child born within American territory regardless of the parents’ relationship to the country. Unlike Justice Thomas, who emphasized parental domicile, Justice Alito placed particular weight upon foreign nationality and the obligations accompanying it.
Justice Alito examined the nationality laws of other countries and the consequences of modern immigration patterns. He argued that children who acquire foreign nationality and corresponding obligations at birth are not necessarily subject to American jurisdiction within the meaning of the Citizenship Clause. He nevertheless distinguished constitutional citizenship from citizenship conferred by statute, recognizing Congress’s authority to address the status of children born in the United States who do not qualify for citizenship under his constitutional interpretation.
Justice Alito also concluded that the challenge to the Executive Order should fail because the plaintiffs sought to invalidate it in every possible application. In his view, the Order was constitutional in at least some circumstances, and that conclusion was sufficient to defeat the facial challenge.
The Separate Opinion of Justice Kavanaugh
Justice Kavanaugh concurred in the judgment but disagreed with the majority’s constitutional reasoning. He concluded that the Executive Order violated federal law, although it did not violate the Fourteenth Amendment.
Justice Kavanaugh relied upon Section 1401(a) of Title 8 of the United States Code, which grants citizenship at birth to persons born in the United States and subject to its jurisdiction. Congress adopted language previously interpreted by the Supreme Court in United States v. Wong Kim Ark. Applying the principle that Congress ordinarily incorporates an established judicial interpretation when it adopts the same statutory language, he concluded that the statute did not permit the President to create additional exceptions to birthright citizenship.
Justice Kavanaugh nevertheless distinguished the original meaning of the Citizenship Clause from its application to circumstances that developed after ratification. He concluded that the Constitution permitted Congress to recognize additional exceptions consistent with that original meaning, even though existing federal law did not establish them.
In his interpretation, Congress possessed constitutional authority to establish exceptions that the President could not impose by Executive Order. The Order was unlawful because it conflicted with the federal statute, not because the Constitution prohibited Congress from adopting such exceptions.
Judicial Restraint Does Not Mean Judicial Abdication
Judicial restraint is an important constitutional principle.
The Supreme Court should respect the authority the Constitution delegates to the Legislative and Executive branches of government and should decide no more than is necessary to resolve the controversy before it. But judicial restraint does not justify declining to enforce constitutional limitations upon governmental power.
The six opinions in Trump v. Barbara demonstrate how different principles of constitutional interpretation can produce fundamentally different conclusions about the same constitutional language. History, precedent, constitutional structure, and judicial philosophy may assist the Justices in determining what the Constitution means. None can become an independent source of constitutional authority.
Judicial philosophy is a method of interpretation, not a source of governmental power or a justification for enlarging it. Historical analysis may illuminate constitutional meaning, but it should not become a means of adding limitations to constitutional guarantees.
The Supreme Court possesses neither the power of the purse nor the power of the sword. Its authority rests upon the willingness of the Nation to accept and enforce its judgments. The faithful exercise of judicial power is indispensable to constitutional government. The Constitution was written not merely to establish a government but to limit its power.
Constitutional limitations do not cease to exist when the Supreme Court declines to enforce them. But their protection becomes uncertain, and the governmental power those limitations were intended to restrain becomes correspondingly greater.
Permission to Repost. You may reproduce this article in its entirety on social media, blogs, and other websites without requesting additional permission, provided the article is reproduced in full without alteration, identifies Victor John Yannacone, Jr. as the author, and includes a prominent link to the original article on this website.