Stunning this even had to go to the SCOTUS. Which part of "ILLEGAL" do Democrats not get?
Did you read the article, or any other article on this case? The men were legal immigrants.
From the OP article: "At the center of the case are immigrants Mony Preap and Bassam Yusuf Khoury, who are in the U.S. as lawful permanent residents."
Here's another article in which it states that one of the men actually won his deportation case after being detained: "One of the lead plaintiffs involved in the California case, Mony Preap, has been a lawful permanent resident of the United States since 1981 and has two convictions for possession of marijuana. He was released from prison in 2006 but was not taken into immigration custody until 2013. Preap has since won his deportation case, allowing him to remain in the country."
Supreme Court rules against immigrants in detention case
This was not a simple illegal alien case.