Sticker Mule loves Donald Trump and doesn’t care if you’re mad.
tl;dr: The CEO said he was pro-Trump and he didn't like the shooting. Certainly not a smart thing to say but not entirely bad, right? Well, he said it to the all the customers via their mailing list.
It's the way he used the assassination attempt to endorse Trump. To try and balance things he mentions some people on his staff support Biden but overwhelmingly the letter read as a political endorsement and beforehand they were known as a neutral and reliable business. I have a business and politics are not a part of our marketing, it's too sensitive of a subject.