What the heck just happened, Chicago? Lori Lightfoot won the mayor’s race by a gargantuan margin. City Council veterans got the boot. Here’s what Tuesday’s results might mean for the future of the city. Reporting by Becky Vevea, Claudia Morell and Dan Mihalopoulos. Editing by Al Keefe. Production by Justin Bull and Becky Vevea. Each week at On Background, WBEZ’s team of political reporters brings you the backstory on the week's big story. Host Becky Vevea and guests take you inside the back rooms of Chicago and Illinois government to better understand the people, places and forces shaping today’s politics.