A U.S. judge on Thursday blocked President Donald Trump's administration from using an 18th-century wartime law to deport some Venezuelan migrants, in the most sweeping ruling thus far against a key part of the Republican president's aggressive immigration crackdown.

A US judge on Thursday blocked President Donald Trump’s administration from using an 18th-century wartime law to deport some Venezuelan migrants, in the most sweeping ruling thus far against a key part of the Republican president’s aggressive immigration crackdown.

A federal judge had blocked the administration’s plan to remove the temporary protected status of more than 300,000 immigrants.