The Supreme Court ruled the Trump administration may use a wartime law to deport alleged members of a foreign crime gang, as long as they are given the right to challenge the government’s claim.

The Supreme Court ruling that permits President Donald Trump to use a centuries-old wartime authority to speed deportations is drawing sharp criticism from immigration experts who fear the decision could erode migrants’ due process rights to have their cases reviewed before they’re sent to a foreign prison.

The Trump administration is touting a Supreme Court ruling allowing it to resume deportations under the Alien Enemies Act as a major victory, but the immigration fight is far from over.