So, what is this supposed to lead to?
The Feds are probably 10x harder to sue if there is a grievance. Or, maybe the perception is that if a Fed performs a violent arrest, Loretta can just sack him or transfer him elsewhere. “Fed have much more self control”.
I guess as long as nothing whatsoever is done to address the underlying causes or minimally, to lessen the crisis atmosphere of the current situation, a liberal good deed that can be lauded has been done. Cool.
I'm assuming it's the mayor's way of getting back at the cops for their refusal to police the city after she arrested some of them for it. They will bring in feds to do the work and to report on those who are looking the other way at local thugs. She'd rather federalize the city's police than make amends with the cops.