Oliver decided to examine each pillar of Trump's self-professed greatness, the greatness that will soon be transferred to America.
He found some of Trump's claims a touch exaggerated or even, to his mind, utter nonsense.
For example, Trump's recurring claim that his campaign is self-funded, preventing him from being controlled by donors or special interests, seems not so accurate, given that on the Republican candidate's website home page there are two "Donate" buttons.
Trump's tweeting was examined for its apparent self-contradiction. And as for all his business ventures, well, they didn't always go according to plan.
Oliver's exhaustive and exhausting excoriation ended with the revelation that the Trump family wasn't always called Trump. Once upon a time it was Drumpf. This name might be seen, he said, as "much less magical." Is he not proud of his heritage, Oliver wondered.
Inevitably, this led to the creation of a new hashtag: #MakeDonaldDrumpfAgain. It's already enjoying quite some activity. Oliver's show has also bought the URL DonaldJDrumpf.com. There, you can buy red hats not dissimilar to the ones Trump himself wears, but with slightly different words on them.