BOSTON (AP) — A federal appeals court in Boston ruled on Friday that the Trump administration cannot withhold citizenship from children born to people in the country illegally or temporarily, adding to the mounting legal setbacks for the president’s birthright order. A three-judge panel of the 1st U.S. Circuit Court of Appeals has become the fifth federal court since June to block the president’s birthright order. They concluded that the plaintiffs are likely to succeed on their claims that the children described in the order are entitled to birthright citizenship under the Citizenship Clause of the 14th Amendment. The panel upheld lower courts’ preliminary injunctions, which blocked the order while lawsuits challenging it moved ahead. The order, signed the day the president took office in January, would halt automatic citizenship for babies born to people in the U.S. illegally or temporarily. “The ‘lessons of history’ thus give us every reason to be wary of now blessing this most recent effort to break with our established tradition of recognizing birthright citizenship and to make citizenship depend on the actions of one’s parents rather than — in all but the rarest of circumstances — the simple fact of being born in the United States,” the court wrote. California Attorney General Rob Bonta, whose state was one of nearly 20 that were part of the lawsuit challenging the order, welcomed the ruling. “The First Circuit reaffirmed what we already knew to be true: The President’s attack on birthright citizenship flagrantly defies the Fourteenth Amendment of the U.S. Constitution and a nationwide injunction is the only reasonable way to protect against its catastrophic implications,” Bonta said in a statement. In July, U.S. District Judge Leo Sorokin in Boston issued the third court ruling blocking the birthright order nationwide after a key Supreme Court decision in June. The issue is expected to move quickly back to the nation’s highest court. The justices ruled in June that lower courts generally can’t issue nationwide injunctions, but they didn’t rule out other court orders that could have nationwide effects. A federal judge in New Hampshire later issued a ruling prohibiting Trump’s executive order from taking effect nationwide in a new class-action suit, and a San Francisco-based appeals court affirmed a different lower court’s nationwide injunction in a lawsuit that included state plaintiffs. In September, the Trump administration asked the Supreme Court to uphold its birthright citizenship order. “The court is misinterpreting the 14th Amendment. We look forward to being vindicated by the Supreme Court,” White House spokesperson Abigail Jackson said. At the heart of the lawsuits is the 14th Amendment's citizenship clause, which states that all people born or naturalized in the U.S. and subject to its jurisdiction are citizens. In a landmark birthright citizenship ruling from 1898, the Supreme Court found a child born in San Francisco to Chinese parents was a citizen by virtue of being born on American soil.