Alec Baldwin has been playing the US presidential nominee for the past few weeks, alongside Kate McKinnon as Hillary Clinton.
In a tweet, Mr Trump said that Baldwin’s portrayal “stinks” and furthered his claims that the media was rigging the election.
Donald Trump co-hosted the show himself in 2015.
At one point, Baldwin’s Trump moves around the set with the Jaws theme playing in the background.
That appears to reference Hillary Clinton’s accusation that he was “stalking” her.
It’s not just Donald Trump who is spoofed.
Jokes are made about both candidates.
Early on in the sketch, Kate McKinnon gets Hillary to perform an awkward “half-lean” pose, as if she were trying – and failing – to do it completely naturally.
Donald Trump said: “Watched Saturday Night Live hit job on me. Time to retire the boring and unfunny show. Alec Baldwin portrayal stinks. Media rigging election!”
Saturday Night Live is one of America’s longest running TV shows, having begun in 1975.
Each week, a team of comedians are partnered with a guest host. This week it was Emily Blunt.
Bizarrely, there was one sketch about the Great British Bake Off in which Kate McKinnon played Mary Berry.
