(The Hill) — A federal appeals court ruled against President Trump on Friday, barring the administration from ending birthright citizenship.

A three-judge panel from the First Circuit Court of Appeals has upheld an injunction from a district court, which prevents the administration from implementing a presidential executive order from January aimed at restricting birthright citizenship.

The court expressed caution in its extensive 100-page opinion, stating, “Historical lessons urge us to be cautious about endorsing this latest attempt to depart from the long-standing tradition of recognizing birthright citizenship, making it contingent upon a parent’s actions, instead of the straightforward fact of being born on U.S. soil, except in the rarest cases.”

Boston’s federal appeals court is the newest judicial body to challenge the president’s initiative to terminate birthright citizenship, affirming that this principle grants citizenship to anyone born in the U.S., irrespective of their parents’ immigration status, and is probably unlawful.

The court’s chief judge noted in the ruling, “Our nation’s history of attempts to limit birthright citizenship—from the Dred Scott decision prior to the Civil War to the rationale behind the Chinese Exclusion Act case, Wong Kim Ark—has been less than honorable.”

This latest appellate court ruling is the fifth to either deliver or support directives blocking Trump’s order since June, part of his extensive immigration reforms since reassuming the presidency.

California Attorney General Rob Bonta welcomed the ruling in a post online.

On social platform X, Bonta commented, “Today’s ruling sustains a nationwide injunction in our lawsuit against the President’s bid to eliminate, by merely signing a document, the constitutional right to birthright citizenship.”

He added, “We will continue to oppose this executive order until the President’s attempt to unmake the Constitution is blocked completely.”

The Golden State was among the 20 states included in the lawsuit.

Late last month, the Department of Justice asked the Supreme Court to review whether Trump’s executive order restricting birthright citizenship is constitutional.