Flanked by Mayor Rahm Emanuel and Police Superintendent Eddie Johnson, Illinois Attorney General Lisa M. Madigan today announced her intention to sue the city of Chicago over police misconduct. The only acceptable resolution, she said, would be a consent decree similar to the one the city sought earlier this year following a critical report from the Department of Justice while President Barack Obama was still in office. This move would put the issue of a consent decree — and a federal moderator to enforce it &mdash …