In many cities, including New York, the unions are a political force, their endorsements and campaign donations coveted by both Republicans and Democrats.
In an era when other labor unions are steadily declining in membership and influence, police unions have kept their numbers up, their coffers full.
Conservatives traditionally abhor labor unions but support the police.
But the United States has eighteen thousand nonfederal police agencies in its hyperlocalized system, with more than seven hundred thousand officers represented by unions.
Another frequent demand was for the hiring of more Black officers.