He was referring to a national[federalized] police force that would replace community policing.
A prerequisite for that is eliminating community policing, through targeted assassinations, degrading morale, and creating the perception that local police aren't up to the job.
When the SHTF, I am standing with the local police.
I believe we have a sociopath in the WH who wants to be a dictator, and will do anything to create the civil unrest needed to declare martial law and suspend elections.