High-ranking Chicago police supervisors push to unionize amid beef with City Hall

A group of high-ranking Chicago police officials are pushing to form their own union, setting up a possible fight with Mayor Brandon Johnson’s administration. In a letter last month to Militza Pagán, Johnson’s deputy mayor of labor relations, an attorney with the Illinois Police Benevolent & Protective Association asked the city to “voluntarily recognize” a new collective bargaining unit of police commanders and deputy chiefs. The union already represents sergeants, lieutenants and…