The Constitutional Battle
The case centered on the 14th Amendment's Citizenship Clause, which states: _"All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens."_ Trump's executive order attempted to reinterpret this clause to exclude children born to non-citizens, but the Supreme Court rejected that approach.
Justice Kavanaugh sided with the majority on the core ruling but offered a crucial distinction: while the President cannot override federal law through executive orders, Congress can rewrite the law itself. He pointed out that the birthright citizenship language was codified into federal statute in the Immigration and Nationality Act of 1952, meaning lawmakers could amend it.
The Legislative Path
Kavanaugh wrote that Congress could _"consistent with the Fourteenth Amendment — amend §1401(a) or otherwise enact new legislation establishing exceptions to birthright citizenship for children born to foreign citizens unlawfully or temporarily in the country."_
This argument drew parallels to Kavanaugh's separate concurrence in a recent tariff case, where he similarly suggested the administration had simply used the wrong legal authority rather than lacking power altogether.
Republican Reactions
•Speaker Mike Johnson (R-La.): stated that birthright citizenship has _"been abused"_ and suggested a constitutional amendment may be necessary.
•Sen. Rand Paul (R-Ky.): renewed his push for a constitutional amendment, writing on X: _"After the Supreme Court decision, that amendment matters more than ever."_
•Sen. Mike Lee (R-Utah): echoed calls for an amendment, saying: _"The long fight for a constitutional amendment begins now."_
•Sen. Tom Cotton (R-Ark.): pointed to his existing **Constitutional Citizenship Clarification Act** as a potential legislative vehicle.
•President Trump: argued Congress could act through legislation alone: _"No long and unwieldy Constitutional Amendment is necessary!"_
The Legal Hurdle
Despite Kavanaugh's roadmap, challenges remain. A 5-4 majority on the constitutional question concluded that the citizenship clause itself protects birthright citizenship, meaning any congressional effort to restrict it through ordinary legislation would likely face immediate constitutional challenges.
Notre Dame Law School professor Haley Proctor noted: _"The only sure way to get a new answer here would be to amend the Constitution."_
Meanwhile, the Justice Department announced it would shift tactics, cracking down on birth tourism through visa fraud enforcement rather than executive orders.