Temkin/Harris, Crain's Chicago Business, WTTW poll, March 18-20, 2019

"If the election for mayor was held today and the candidates were Lori Lightfoot and Toni Preckwinkle, for whom would you vote? If undecided, which candidate do you lean towards supporting?"

Poll conducted by Normington, Petts & Associates. Number polled: 500; Margin of error: +/- 4.4.