The Supreme Court is preparing for a pivotal hearing this Wednesday concerning President Trump's executive action aimed at terminating birthright citizenship for children born on U.S. soil to undocumented immigrants. This case is widely regarded as the most significant matter remaining on the Court's current docket.

The Core Legal Challenge to Birthright Citizenship

The executive order, which sought to revoke automatic citizenship for the offspring of illegal immigrants, faces its moment of truth before the highest court. Mike Davis, founder of the Article III Project and a strong Trump supporter, asserted that the justices must uphold the law, stating, “This is a glaring red line for the Supreme Court justices that they don’t get to give away citizenship. They don’t have that power.”

Davis further warned that the justices risk losing legitimacy if they do not adhere to established law, emphasizing the critical nature of this case. Critics, including many conservative legal scholars initially, expressed skepticism that ending birthright citizenship could be achieved merely through an executive order.

Constitutional Basis and Interpretation

Birthright citizenship is rooted in the 14th Amendment, which declares that “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.” Trump's legal team focuses on redefining the term “jurisdiction,” arguing that illegal immigrants are not fully subject to U.S. jurisdiction.

They also cite the 1884 Supreme Court precedent, Elk v. Wilkins, which excluded children of Native Americans from automatic citizenship guarantees. Trump's counsel contends that historical evidence shows children of aliens present illegally were not intended to be covered by the amendment's jurisdiction clause.

Precedents and Statutory Arguments

The debate also involves the Nationality Act of 1940. Gerald Neuman, a Harvard Law School professor specializing in constitutional law, noted that proponents of the order claim the Act creates a gray area in the 14th Amendment. Opponents maintain that Trump's action violates both the Constitution and existing statutory law.

The Supreme Court must determine if the executive order aligns with both the 14th Amendment and the Nationality Act. Every lower court reviewing the order has previously ruled it illegal. The Court previously addressed this in the 1898 case U.S. v. Wong Kim Ark, ruling in favor of a man born to Chinese immigrants, establishing that nearly all native-born children gain automatic citizenship, barring exceptions like foreign rulers or diplomats.

Distinctions Between Legal Precedents

Ilhan Wurman, a University of Minnesota Law Professor, pointed out a key difference: Wong Kim Ark involved legally domiciled parents, whereas the current case concerns children of temporary visitors or undocumented aliens. Wurman suggests the Court has never explicitly ruled on the 14th Amendment's application to these specific categories.

Legal experts note that using an executive order complicates Trump's effort. Professor Neuman stated that while Congress might have had theoretical avenues to change the rule, presidential authority via executive order is legally questionable, calling the case against the order “extremely solid” due to strong precedent and the strained interpretation of “jurisdiction.”

Arguments For and Against the Policy

Supporters of ending birthright citizenship argue that the current policy acts as a major incentive for illegal immigration and exacerbates border issues. Mike Davis argued that the plain text of the 14th Amendment never intended to grant citizenship to illegal aliens, questioning why children of foreign ambassadors or invading armies are excluded, but others are not.

Conversely, Professor Ming Hsu Chen from UC-San Francisco countered that established law recognizes the distinct rights of children regardless of their parents' status. She argued that blaming or penalizing children for their parents' actions falls outside the scope of permissible policy debate.

President Trump has publicly criticized the current system, stating that the U.S. is unique in granting such broad rights, which he believes the world exploits. The Supreme Court's review also encompasses whether lower courts exceeded their authority by imposing universal injunctions to block presidential actions, such as the initial blocking of Trump's order when refiled as a class action lawsuit.