South Side Ald. Roderick Sawyer, whose father was mayor in the 1980s, will run for City Hall’s top job, he said Thursday. Sawyer’s declaration marks an extraordinary break with Mayor Lori Lightfoot, who selected him to be part of her City Council leadership team as chairman of the health and human services committee. In an interview with the Tribune, Sawyer criticized Lightfoot’s combative leadership style and said her contempt for aldermen makes it difficult for the City Council to get things done. “I don’t think I would treat my colleagues as nemesis or an opposing party. We’re all partners in...