City Council is officially on summer break, but trouble is brewing, especially for Mayor Rahm Emanuel, who’s battling two big issues. On the one side, he’s got well-organized reform activists demanding he give over police oversight to citizens. Their numbers are growing by the day. Then there’s the Chicago Teachers Union, which refuses to pick up more pension and health care costs, and is threatening to strike, despite what public school officials say is a good faith effort to cut costs on their end. All of this leads into a blockbuster fall, when school funding, police reform, and the city’s annual budget process will collide, leaving aldermen with a lot of tough decisions to make.