Federal court rules president cannot use 18th-century law to speed deportation of those accused of being part of Tren de Aragua

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A federal appeals court has ruled that Donald Trump cannot use an 18th-century wartime law to speed up the deportations of people his administration accuses of being members of a Venezuelan gang.

The ruling late on Tuesday blocks a signature administration push that is likely to be destined for a final showdown at the US supreme court.