Believing preposterous things merely makes you spectacularly ill-informed – but you can be that without also being an idiot or an asshole. Thus, while Frink is correct that both Trump and Bevin are saying things that are completely unsupportable by any conceivable interpretation of the available evidence, his “idiot” and “asshole” designations did not logically flow from that factual assessment. They were either an injection of political opinion, or they were based on a longer-term analysis of other facts that do support those designations.

Not to mention, you can say preposterous things without actually believing them, but that does make the case for the “asshole” designation a little more clear-cut.

EDIT: It should also be noted that an early draft of Silence of the Lambs had Hannibal Lecter escaping the FBI by calling in to have them check on a teenager’s threats of violence. With the FBI’s resources completely focused on that, he just booked a flight and left. So I guess it’s not that preposterous.