Very good point. My claim: "Stating speculation as fact...." itself could be described as sloppy. To clarify: factually, Politico is printing the words of a third party - it is a fact (presumably) that this person made that statement. The statement itself is speculation stated as fact, but the speaker bears the direct guilt for that, not Politico.
But I'm not pointing my finger so much at Politico for some sort of outrageous bias, in general or in this particular case, but rather the general way that events in reality are communicated to the public, and the way in which this subsequently manifests in society. Even if nothing nefarious has gone on, people perceive reality and the news the way they do (the specifics of which no one fully understands), and I'm suggesting (based largely on observation of apparent beliefs held by people in forums) that narrative and rumor based reporting like this is having a possibly very serious effect on people's perception of reality, the result being some degree of textbook mass delusion or worse in the public, where prior to cable news and the internet the beliefs would generally have been either null or wrong in other ways.