Seamus the Irish setter may have died years ago, but the now-infamous story of his rooftop ride has been more firmly cemented into the narrative of the 2012 campaign than his retaliatory excrement was plastered to the back window of the Romney family station wagon during that fateful trip 20 years ago. The Santorum campaign has referenced Mitt Romney’s treatment of his dog Seamus four times over the past week as an anecdote that purportedly calls into question the former governor’s character. -snip- “If you can’t be nice to your dog, who are you going to be nice to?”