President Trump's bid to cut off birthright citizenship is "flagrantly unlawful," attorneys for 18 states said in a lawsuit challenging the president's executive order.

The 9th U.S. Circuit Court of Appeals affirmed a lower court's decision to block the nationwide enforcement of President Donald Trump's push to end birthright citizenship via executive order.

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The lawsuit, filed in Massachusetts, said President Trump’s executive order violates the 14th Amendment which guarantees citizenship to “all persons born or naturalized in the United States ...