Apparently it was about 6 years ago. And here was his apology.
“I’m an idiot,” Bernstein said on “The Boers and Bernstein Show,” according to the Chicago Tribune. “There are certain times when you can be childish and crass and there are other times when it’s just really stupid to be a child. My tweet was childish, my tweet was crass and unnecessary and I’m sorry I dragged an innocent person into it who’s doing a job and I made an observation I shouldn’t have made, and it was childish and silly and stupid.”