It could be that he lost one case. But I’ve read a couple of times that he didn’t.
IIRC, I heard him talk about it on Greta. The only reason I remember is because he said it still bothers him, he should have won it. :)
Either way, lose 1 or none, he was a good prosecutor. I am trying very hard to keep my disdain for the rest of the GOP (with a few exceptions) from clouding my judgment regarding his committee.