Home Lori Lightfoot greets commuters at an L station in Logan Square on April 02, 2019 in Chicago, Illinois. Voters in Chicago go to the polls today to select a new mayor in a runoff election. Lightfoot is running against Cook County Board President Toni Preckwinkle. (Photo by Scott Olson/Getty Images) Lori Lightfoot greets commuters at an L station in Logan Square on April 02, 2019 in Chicago, Illinois. Voters in Chicago go to the polls today to select a new mayor in a runoff election. Lightfoot is running against Cook County Board President Toni Preckwinkle. (Photo by Scott Olson/Getty Images)

Lori Lightfoot greets commuters at an L station in Logan Square on April 02, 2019 in Chicago, Illinois. Voters in Chicago go to the polls today to select a new mayor in a runoff election. Lightfoot is running against Cook County Board President Toni Preckwinkle. (Photo by Scott Olson/Getty Images)

CHICAGO, ILLINOIS – APRIL 02: Chicago mayoral candidate Lori Lightfoot greets commuters at an L station in Logan Square on April 02, 2019 in Chicago, Illinois. Voters in Chicago go to the polls today to select a new mayor in a runoff election. Lightfoot is running against Cook County Board President Toni Preckwinkle. (Photo by Scott Olson/Getty Images)

Chicago Mayor-elect Lori Lightfoot leaves the Rainbow PUSH Coalition after a unity press conference with mayoral candidate Toni Preckwinkle in Chicago, Illinois, on April 3, 2019.<P><P>CREDIT: </BR> KAMIL KRZACZYNSKI/AFP via Getty Images</P>