The executive order, signed by the Republican president on his first day in office on Monday, has already sparked five lawsuits filed by civil rights organizations and Democratic attorneys general from 22 states.
In a hearing held three days after Trump issued his executive order, a US District Court judge, John C. Coughenour, sided at least for the moment with four states that sued.
A federal judge in Seattle has issued a temporary order halting the president’s plan.
The case is one of five lawsuits brought by 22 states and several immigrant rights groups.