The Trump administration is asking the Supreme Court to allow it to largely implement a policy of withholding public safety grants from "sanctuary cities" that refuse to cooperate with President Donald Trump's immigration enforcement policies.

The Trump administration filed a brief Monday asking Justice Elena Kagan to limit a lower court ruling against the administration to Chicago, which sued. A three-judge panel of the 7th U.S. Circuit Court of Appeals ruled against the government in April, keeping in place a lower court's nationwide ruling preventing the Trump administration from implementing its grant requirements.

The administration wants the ruling narrowed to Chicago as the case proceeds before the entire appeals court and possibly to the Supreme Court. Nationwide rulings by individual federal judges have been a recurring frustration for the administration.