Lori Lightfoot conceded defeat in a stunning election Tuesday after failing to qualify for the spring runoff. Former public school chief Paul Valis and Cook County Commissioner Brandon Johnson are the top vote getters who now head into an April 4th runoff election that will likely be fraught with racial tensions and divisiveness. Chicagoans haven't ousted an elected mayor in 40 years when Jane Byrne Chicago's first female mayor was defeated in 1983 Democratic primary life.