SPRINGFIELD — One year ago Thursday, former House Speaker Michael Madigan — for decades the most powerful figure in Illinois politics — was indicted on 22 counts of racketeering, bribery, wire fraud and extortion.The anniversary comes roughly two years after Madigan’s fellow Democrats forced him to cede the title of longest-serving speaker of any legislature in U.S. history. His ouster in January 2021 was followed by his resignation from both the House seat he’d held since 1971 and as chair of …