This one was sent out in Alaska and is even more similar than the McConnell one. It was sent by a conservative group. The article says both the Koch brothers and progressive groups sent out similar ones:
The wording of that is VERY different from one with a giant VOTING VIOLATION at the top with no explanation and giving you an “F” as a voting grade. This is a letter that explains itself quite clearly. I still think it’s bad form to rat out neighbor’s voting records.
Yea the Alaska one seems pretty similar...