The creator of Thanos says he felt "violated" when he saw a video tweeted by Donald Trump's election campaign showing the US President's face superimposed on the supervillain's head.
In a scene borrowed from Avengers: Endgame, Mr Trump says "I am inevitable" and clicks his fingers, causing Speaker of the House of Representatives Nancy Pelosi, who has led calls for his impeachment, to disappear in a cloud of dust.
"President Trump's re-election is inevitable," the tweet by @TrumpWarRoom reads.
Jim Starlin, the comic writer and illustrator behind the Thanos character, shared his disappointment on Instagram.
"The leader of my country and the free world actually enjoys comparing himself to a mass murderer. How sick is that?"
For the uninitiated, in the Avengers films, Thanos is responsible for the destruction of half of all living things in the universe.
Many pointed out that things didn't exactly end well for the evil mastermind (and wondered if, by extension, the analogy made Iron Man a Democrat).
But others argued that the Trump campaign was simply trying to cause a stir. The @TrumpWarRoom account this morning retweeted a user who said "the whole point of it was to make liberals and/or sane humans retweet it angrily, thus making it trend on Twitter so they can get more views and donations".
In its bio, @TrumpWarRoom says it "punches back 10x harder".
This morning, it said efforts by its opponents to remove the tweet had failed.
The Trump campaign regularly turns big moments from news and pop culture into political memes.
This morning, @TrumpWarRoom superimposed Mr Trump's face onto Greta Thunberg's head on the front cover of Time magazine, saying, "When it comes to keeping his promises, there's only one Person Of The Year".
In October, Mr Trump tweeted an edited snippet of the film clip for Nickelback's 2005 song Photograph, in which singer Chad Kroeger holds up a photo including former vice-president Joe Biden and his son Hunter, but it was removed after a copyright claim.
HBO, the maker of Game of Thrones, has also requested the US President not use its intellectual property for political purposes.
