The 9th Circuit, of all courts, has sided with Trump in his fight against sanctuary cities. Indeed, he can withhold certain funds from the guilty parties.

The 9th Circuit Court of Appeals on Friday ruled in favor of the Trump administration's efforts to prioritize federal dollars for local policing to towns and cities that complied with certain immigration policies.
The ruling, a split 2-1 decision, said the Department of Justice (DOJ) was within its rights to withhold Community Oriented Policing Services (COPS) grants from sanctuary cities and states over their refusal to work with federal immigration enforcement authorities and instead prioritize agencies that focused on unauthorized immigration and agreed to give Immigration and Customs Enforcement (ICE) access to jail records and immigrants in custody.
The city of Los Angeles first sued the administration after it was denied a $3 million grant on the grounds that it did not receive the money because it did not focus on immigration for its community policing grant application. The decision reversed a district court’s ruling.
“The panel rejected Los Angeles’s argument that DOJ’s practice of giving additional consideration to applicants that choose to further the two specified federal goals violated the Constitution’s Spending Clause,” wrote Judge Sandra Ikuta, joined by Judge Jay Bybee.

Read the full story at The Hill, here.