Brandon Johnson emerges victorious in Chicago mayoral race.

Brandon Johnson, a progressive Democrat and former teacher, has won the Chicago mayoral race, defeating Paul Vallas, the establishment-backed frontrunner. Johnson's campaign focused on taxing the rich and bringing more equity to the city's South and West sides. He was endorsed by the Chicago Teachers Union and Senators Bernie Sanders and Elizabeth Warren. Johnson will have to address fiscal challenges facing the city's public transportation and schools, as well as work with a City Council that recently voted to limit the new mayor's political power.