The justices said they were not ruling on the legality of specific firing plans but simply allowing the administration to launch such efforts while litigation continues.

Several labor unions and non-profit groups made a coalition to challenge and sue the Trump administration over the decision of mass firing. In May 2025, US District Court Judge Susan Illston curbed Donald Trump administration's move to conduct mass layoff of US federal workers. This also requires a green light from the Congress.

President Donald Trump called the U.S. Supreme Court's June 27 decision limiting the ability of federal judges to use nationwide injunctions to block his policies "a monumental victory," but his legal win may be less definitive than it first appeared.