Trump is playing Captain Obvious and the press is playing the three monkeys: see nothing, hear nothing, speak nothing that is intelligent.
The surging crime in the inner cities is clearly the Ferguson effect. It is what you get when you do not support the police, demonize them, and threaten them with lawsuits for doing their job.
Guess what. They stop doing their job, as any rational person would do in those circumstances.
With no rule of law in the inner city, Crime skyrockets.
Duh!