A federal judge has blocked a new birthright citizenship order issued by Trump. The judge's decision describes the order as almost certainly unconstitutional. This ruling indicates a significant legal hurdle for the order.

Further details about the decision and its implications are available from the source. The ruling suggests a strong legal challenge to the order, with the judge expressing clear concerns about its constitutionality.

The source provides more information about the block on Trump's order, which has been deemed almost certainly unconstitutional.