De Blasio screwed up by being so loud and vocal about it. He came into office screaming from the rooftops for anybody who would listen that the cops were bad. Playing up the story of worrying about his black son with police stops... He embarrassed the cops. In my opinion they deserve it, and his complaints were totally just ones, but if you want to get anything out of them I don't think you can do that. A smart Mayor would keep it quiet, but when contract negotiations come around work it hard.