CHICAGO (AP) — Brandon Johnson, a union organizer and former teacher, was elected as Chicago’s next mayor Tuesday in a major victory for the Democratic Party’s progressive wing as the heavily blue city grapples with high crime and financial challenges. On Tuesday, Johnson took many of the predominantly Black southern and western areas where Lightfoot won in February, along with the northern neighborhoods where he was the top-vote getter back then, according to precinct-level results released by election officials. Resident Chema Fernandez, 25, voted for Johnson as an opportunity to move on from what he described as “the politics of old