The Supreme Court on Tuesday struck down President Trump’s executive order limiting birthright citizenship, reaffirming the long-held principle that the Constitution guarantees that nearly all children born on U.S. soil are citizens.
The ruling was a significant blow to a policy long pursued by Mr. Trump to prevent babies born to undocumented immigrants and temporary foreign residents from automatically becoming Americans.
Chief Justice John G. Roberts Jr., writing for the majority, explained that Mr. Trump’s executive order violated the 14th Amendment of the Constitution. Children born in the United States to undocumented parents or to parents temporarily in the country, he wrote, are citizens at birth.
“Citizenship, then and now, was the right to have rights — to freely participate in our political community,” Chief Justice Roberts wrote. “The framers of the Fourteenth Amendment extended that promise to ‘every free-born person in this land.’”
He added: “We keep that promise today.”
The legal battle over birthright citizenship began on the first day of Mr. Trump’s second term, when he announced an executive order titled “Protecting the Meaning and Value of American Citizenship.”


