That court had no jurisdiction and the Justice Department will deny grants to such cities, anyway. Thomas Jefferson was the first president to impound funds appropriated by Congress and nearly every president since has done the same. In 1974, Congress passed a law requiring the president to petition Congress within 45 days of impounding such funds to rescind those funds. Since the third president of the US has ever claimed this action was unconstitutional and this ruling is a clear abuse of power by the judge and need not be obeyed.
Well, until that is overturned, you don't have much of a case, do you? Be sure to let me know when that happens...
The President could choose to ignore this obviously bogus decision, and there is precedent for doing so.
"Federal judge Roger Taney, the chief justice of the Supreme Court (and also the author of the infamous Dred Scott decision), issued a ruling that President Lincoln did not have the authority to suspend habeas corpus. Lincoln didn't respond, appeal, or order the release of Merryman. But during a July 4 speech, Lincoln was defiant, insisting that he needed to suspend the rules in order to put down the rebellion in the South.
"Five years later, a new Supreme Court essentially backed Justice Taney's ruling: In an unrelated case, the court held that only Congress could suspend habeas corpus and that civilians were not subject to military courts, even in times of war."
What happens if Trump decides to ignore a judge's ruling?