I told him to tell whoever it was that if they see 'Goofy' they should kick his ass.
The way it usually works at newspapers is that the editorial board meets a couple of times a week, decides what line it's going to take on a few issues over the next few days, and then assigns someone from the board to write up the editorials arguing whatever POVs they collectively decided to take. (Usually, it's the editorial page editor that ends up writing it.) Of course, these meetings have preordained conclusions on every issue of actual import, but it allows them to claim, and/or believe in their own minds, that every editorial is the result of an actual, reasoned debate between human beings of differing viewpoints. And sure, there will often be one or two people on the board of a vaguely center-right persuasion (they'd never be allowed on the premises if they were hard right across the board), but that doesn't count for much if there's six or more people on the entire board.
So just look at the masthead on the editorial page and send your email to every one of them. They all had a hand in deciding what the editorial would be and what it would say, and one of them was almost certainly the final author.