GREGG JARRETT: Robert Mueller's tragic fall from grace and the damage he left in his wake

Sometimes beneath the noble exterior, human imperfection is exposed, and a sturdy reputation is shattered.

With the recent passing of Robert Mueller we are reminded that even accomplished figures can stumble into an abyss of poor decisions and regrettable mistakes. His tarnished legacy is the sad coda to a once towering life and career.

Mueller’s earlier service in the military and high government positions, including as director of the FBI, was commendable. But in May 2017, he agreed...