A video posted by Donald Trump on his Truth Social platform last Saturday, depicting the former president as the spiky-haired ninja Naruto, has reignited a simmering protest among Japanese anime and manga enthusiasts. The AI-generated clip, which splices Trump’s likeness onto the beloved protagonist, prompted a sharp acceleration in signatures for an online petition that had languished since March. Organisers now claim more than 20,000 supporters, arguing that the president’s repeated appropriation of iconic characters — including Pikachu and figures from Yu-Gi-Oh! — for political self-promotion fundamentally misrepresents their values and may violate intellectual property rights.

Viewed from Tokyo, the discontent is as much cultural as it is legal. Fans insist that heroes like Naruto embody perseverance and empathy, not partisan messaging, and that their unauthorised use in AI-generated propaganda cheapens narratives cherished across generations. The Pokémon Company has already publicly condemned the use of its imagery, a rare direct intervention from a major rights holder. Japan’s minister for economic security and the Cool Japan strategy, Kimi Onoda, pointedly declined to name Trump at a press conference but stressed that “the basic principle is to obtain permission from the copyright holder before using a work,” a remark widely interpreted as a rebuke aimed at Washington.

From a Western vantage, the episode underscores Trump’s longstanding habit of co-opting pop-culture iconography to energise his base, now amplified by generative AI tools that allow rapid, low-cost production of fantastical imagery. Yet in East Asia, where manga and anime characters are treated as quasi-national treasures and intellectual property enforcement is rigorous, the tactic lands differently. Analysts in London note that the petition, though modest in absolute numbers, has drawn unusual attention from mainstream Japanese media and government figures, signalling a level of official irritation rarely directed at a sitting US president over cultural matters.

The White House has not responded to requests for comment, and Trump’s team has shown no sign of retreating from the provocative visual style that has become a hallmark of his social media presence. Whether the combined pressure from fans, rights holders, and Tokyo will alter that calculus remains uncertain. For now, the clash highlights a growing friction point: as political movements increasingly weaponise global pop culture through AI, they risk colliding with fiercely protective fan communities and the legal regimes that guard their fictional heroes.