Two weeks ago, the notion that Attorney General Bill Schuette might bring felony charges against Gov. Rick Snyder was so outlandish that I could joke about it in a column without worrying that anyone would take me seriously. In bringing involuntary manslaughter charges against Department of Health and Human Service Director Nick Lyon and four other officials, Schuette has brought the Flint water investigation to Snyder’s threshold. Only the governor’s chief of staff – and Snyder himself – hold positions higher in the gubernatorial food chain. Schuette says he knew Snyder’s potential exposure would become “the elephant in the room” once he charged Lyon, and he has taken pains to say that investigators have yet to surface probable cause that Snyder committed any crime.