I think it's fair to characterize tone and intent as part of the message. And when the tone of the message is, BREAKING NEWS THERE HAS BEEN A CORRUPTION, having no evidence of it seems worthy of the phrase misinformation.

As has been said about Trump so many times this cycle, "Extraordinary claims require extraordinary evidence". Except nobody's saying that this time. Maybe because there is no actual claim being made? Just the appearance of one?