When asked the question of how to “restore integrity to City Hall” and why they would be the most trusted to accomplish that task, Mendoza used the opportunity to take a shot at Preckwinkle. The comptroller started by noting how she and nearly the rest of the field all favored outlawing aldermanic prerogative, the practice that allows City Council members to have veto power of zoning and permitting in their wards and was at the center of Burke’s alleged shakedown.