Superintendent of Police directed to enter into and execute new contract or contract extension or renewal for acoustic gunshot detection technology services

The split

The Mayor wanted this to fail, and did not get it. Passed by 19 votes (33–14). Of the 47 alderpersons who voted, 14 sided with him and 33 against (30% with). Across the Top 5, the council sides with him 44% of the time.

Broke with the Mayor

Brian Hopkins (Ward 2), Pat Dowell (Ward 3), Desmon C. Yancy (Ward 5), Gregory I. Mitchell (Ward 7), Michelle A. Harris (Ward 8), Anthony Beale (Ward 9), Peter Chico (Ward 10), Nicole T. Lee (Ward 11), Marty Quinn (Ward 13), Jeylu B. Gutierrez (Ward 14), Raymond A. Lopez (Ward 15), Stephanie D. Coleman (Ward 16), David H. Moore (Ward 17), Derrick G. Curtis (Ward 18), Matthew J. O'Shea (Ward 19), Ronnie L. Mosley (Ward 21), Silvana Tabares (Ward 23), Monique L. Scott (Ward 24), Chris Taliaferro (Ward 29), Ruth Cruz (Ward 30), Felix Cardona, Jr. (Ward 31), Scott Waguespack (Ward 32), William Conway (Ward 34), Gilbert Villegas (Ward 36), Emma Mitts (Ward 37), Nicholas Sposato (Ward 38), Samantha Nugent (Ward 39), Anthony V. Napolitano (Ward 41), Brendan Reilly (Ward 42), Timothy R. Knudsen (Ward 43), Bennett R. Lawson (Ward 44), James M. Gardiner (Ward 45), Debra L. Silverstein (Ward 50)

Absent or not voting

Lamont J. Robinson (Ward 4), Jeanette B. Taylor (Ward 20), Walter Burnett, Jr. (Ward 27)

Against their pattern

14 who usually vote with the Mayor voted against him here: Pat Dowell (Ward 3), Desmon C. Yancy (Ward 5), Gregory I. Mitchell (Ward 7), Michelle A. Harris (Ward 8), Jeylu B. Gutierrez (Ward 14), Stephanie D. Coleman (Ward 16), David H. Moore (Ward 17), Derrick G. Curtis (Ward 18), Ronnie L. Mosley (Ward 21), Monique L. Scott (Ward 24), Chris Taliaferro (Ward 29), Ruth Cruz (Ward 30), Emma Mitts (Ward 37), Timothy R. Knudsen (Ward 43).

Computed from the roll call and the published record. Absences and non-votes are not counted. Sides follow the ward map: north of the river, the Loop and Near North, the West Side, and everything south of the Loop.