This is what President Trump was elected to do. And this is what he appointed Attorney General Sessions to do. And Sessions has the determination to get it done.
From the Washington Times:
The Justice Department issued a new warning to sanctuary cities Tuesday, saying they must prove they fully cooperate with immigration agents in order to claim federal law enforcement grant money.
Attorney General Jeff Sessions said jurisdictions that don’t allow federal agents into their prisons and jails, and that refuse to give at least 48 hours’ notice before releasing illegal immigrants, will lose money. “This is what the American people should be able to expect from their cities and states, and these long overdue requirements will help us take down MS-13 and other violent transnational gangs, and make our country safer,” he said.
The warning was attached to the Byrne Justice Assistance Grant program, which doles out nearly $400 million in funds. Both the Obama and Trump administrations have concluded that federal law requires local law enforcement to cooperate on immigration enforcement in order to be eligible for these kinds of grants.