The original ruling against the executive order came from a federal judge in New York who said that those who arrived in the United States legally from the seven nations could not be deported. This applied to visa and green card holders alike and is a nationwide injunction.
The ACLU with the help of refugee and immigrant rights groups in Massachusetts and Virginia were able to gain additional footholds beyond the baseline order made in New York. In Boston, two federal judges placed a restraining order on Trump's travel ban that will last for at least seven days. In Virginia, lawyers earned the right to meet with detainees and the DHS and Customs and Border Protection were forbidden from deporting legal immigrants for a week.
There have been some attempts for clarity about how the executive order affects various immigrant groups. One senior White House official told NBC News Saturday evening that legal permanent residents of the U.S., or green card holders, would be exempt from the executive order.
White House Chief of Staff Reince Priebus seemed to affirm that idea on "Meet the Press" earlier in the day.
However, the Trump administration and the Department of Homeland Security also pushed back on the rulings.
A senior White House official said earlier Sunday that the president had the right and Constitutional power to enact the order. According to the official, the judge's decision changed nothing.
"All stopped visas will remain stopped. All halted admissions will remain halted. All restricted travel will remain prohibited," the official said. "The executive order is a vital action toward strengthening America's borders, and therefore sovereignty. The order remains in place."
With the federal judges' ruling appearing to conflict with the executive order, uncertainty and chaos continued across the nation as lawyers sought access to those detained at airports and reports rolled in that Customs and Border Patrol agents were not abiding by the federal ruling.
"The [judge's ruling] is a blanket order for everyone that is affected by the Trump order no matter what status they're in," said Lee Gelernt, deputy director of the ACLU Immigrants' Rights Project, who argued the New York case.
"None of them can be removed from the U.S. while the judge determines the legality of the" executive order, he added.
Gelernt said the struggle for the ACLU and the groups that are assisting is that they do not know where all the affected immigrants are. The judge's ruling also said the federal government is expected to provide a list of all immigrants who are being detained.
More than 16 hours later, the government still had not provided that list.
According to the temporary restraining order, the ACLU had "met their burden" of proving that there is a "strong likelihood" that detaining these immigrants would be unconstitutional because it violates their rights to Due Process and Equal Protection.