Because when I do an election sign, I put down “authorized by the official agent”, according to the record. When I do brochures, I say “authorized by the official agent”. And on the media buys I heard on the radio, and on a variety of other things, it says “Paid by Trinity—Spadina Riding Association”.
Now, I might argue that by saying “Trinity—Spadina riding”, the Conservative riding association doesn't necessarily translate very much into votes for Sam Goldstein, but that's an internal point of view.