I think the most likely scenario is that he caught whatever DC brainworm infected Eric Garland and Seth Abramson, just for the other side. The most hilarious part is that he found a house nearby that country club that belonged to a classmate of Kavanaugh, and, rather than uttering an entirely sensible "oh shit, maybe she's telling the truth" actually doubled down and concocted a theory whose entire structure is built around the true, but dumb fact that every white kid at Georgetown Prep looks exactly the same.