I notice that the citation they use as authority for the proposition that he is connected to the Russians is dated in 2017. Apparently they can’t find one that supports that proposition and is dated before the controversy. It makes it look like he suddenly became a Russian asset after Mueller needed him to be a Russian asset.
Because Mifsud was a US asset that planted the story with Popadopolous who then repeated it to Downer (all according to plan) who told the FBI and thus provided the "necessary" pretext for Crossfire Hurricane.