Trump’s plan to vastly expand migrant detentions at the Guantánamo Bay Naval Station in Cuba has proven costly and logistically complicated.

A federal judge in Washington ruled against plaintiffs who challenged the Trump administration’s ability to transfer immigrants to the U.S. military base in Cuba, known as Guantánamo Bay.

A federal judge expressed doubts toward those challenging the federal policy, a potentially favorable sign for President Trump as he seeks to clamp down on immigration.