Stan Marsh, Kyle Broflovski, Eric Cartman and Kenny McCormick attend The Paley Center for Media presents special retrospective event honoring 20 seasons of 'South Park' at The Paley Center for Media on September 1, 2016 in Beverly Hills, California.

The White House correspondents' dinner is not proven to be the reason Donald Trump was elected president but, really, can you rule it out? Each year, journalists gather in black tie to hear a comedian's political shtick. The jokes are good but too easy, the assumptions too liberal, the audience too aligned with its entertainer. Last week's event starred Hasan Minhaj of, naturally, The Daily Show. At times, the stereotype of a coastal elite who high-five each other on a mutual adulation circuit of talk shows and well-catered parties is a demagogic slander. At others, it materialises in real time and space.

How mysterious that a nation that produces this spectacle also invented one of the most potent satires ever committed to television. It has been 20 years since the debut of South Park. That is long enough to take the measure of its impact — and to conclude, with some confidence, that it did more than any cultural product of that era to predict the counter-elite mood of today.