A long election season in Chicago came to a close Tuesday with Brandon Johnson narrowly eking out a victory over Paul Vallas in the race to become Chicago’s next mayor. Unofficial results show Johnson won by just around 15,000 votes out of more 550,000 cast. How did he do it, and what does his victory mean for Chicago? We take a look at what happened with Block Club Chicago investigative editor Mick Dumke, who breaks down the race and what we can expect after Johnson’s swearing-in on May 15.