Preckwinkle defends party loyalty pledge as Cook County Democrats hear from challengers to Assessor Fritz Kaegi and Sheriff Tom Dart

Cook County Board President Toni Preckwinkle speaks out as employees of the Art Institute of Chicago, and its affiliated School of the Art Institute, are joined by elected officials and supporters, on Nov. 22, 2021, as they rally outside the the Art Institute of Chicago Museum. (Antonio Perez / Chicago Tribune)