The WSJ has this editorial, titled The Blue-City Model with the above subhead.  Here is the portion on-point for this blog:

The dysfunctions of the blue-city model are many, but the main failures are three: high crime, low economic growth and failing public schools that serve primarily as jobs programs for teachers and administrators rather than places of learning.

Let's take them in order. The first and most important responsibility of any city government is to uphold law and order. When the streets are unsafe and crime is high, everything else--e.g., getting businesses to invest and create jobs--becomes next to impossible.

People also start voting with their feet. Mayor Stephanie Rawlings-Blake has stated that one of her goals is to attract 10,000 families to move to Baltimore. Good luck with that after Monday night.

It's not that we don't know what to do. Rudy Giuliani proved that in New York City, which he helped to revive in the 1990s starting with a revolution in policing that brought crime rates to record lows. A good part of this was policing in areas that had previously been left to the hoodlums.

His reward (and that of his successor, Mike Bloomberg, who built on Mr. Giuliani's policies) was to become a villain of the liberal grievance industry and a constant target of attack. Few blue-city mayors elsewhere have been willing to take that heat.