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Lula Campaign Takes Meta to Brazil’s Electoral Court Over Alleged Algorithmic Bias
By Drooid · · How we work
Legal Challenge Over Alleged Algorithmic Bias
The campaign of President Luiz Inácio Lula da Silva filed a formal complaint with Brazil’s Superior Electoral Court (TSE) accusing Meta – the owner of Instagram, Facebook and WhatsApp – of using biased algorithms and artificial-intelligence restrictions that favored opposition candidate Flávio Bolsonaro ahead of the Oct. 25, 2026 runoff. The filing alleges that Lula-related posts and ads suffered “unjustified reductions in reach,” while Bolsonaro-aligned accounts received “artificially inflated visibility” comparable to global celebrities. The complaint also notes that Meta’s WhatsApp “Meta AI” feature failed to generate campaign images for Lula but allowed such content for Bolsonaro supporters.
Election Context and Stakes
In the first round held earlier in October, the Bolsonaro son led with 47 % of the vote against Lula’s 45 %, setting up a tight runoff. Both campaigns rely heavily on social-media platforms to mobilize supporters, making the alleged disparity in content distribution a critical issue for the election’s outcome.
Court Ruling and Enforcement
Justice Marco Aurélio Bellizze of the TSE issued an immediate order requiring Meta to treat the two candidates equally. The ruling bars the company from reducing the distribution of political content, restricting searches, or removing posts in a way that creates an imbalance. Meta must also apply identical criteria to its AI tools for both campaigns. Non-compliance triggers a fine of 500,000 reais (approximately $98,000) per day.
Responses from the Campaign and Meta
Lula’s legal team, represented by lawyers Gean Ferreira and Evelyn Santos, said the platform’s selective delivery harms the incumbent’s ability to reach voters and demanded that the court compel Meta to double the reach of its restricted content. Meta, for its part, rejected the bias accusations, attributing reported issues to technical glitches that affect accounts beyond Brazil and affirming its compliance with Brazilian electoral regulations. The company told the court it is committed to providing equal platform access for all political parties.
Implications
The dispute highlights growing scrutiny of major tech firms’ role in democratic processes and may set precedents for how algorithmic transparency is enforced in future elections, both in Brazil and internationally. The fine and mandated corrective measures place immediate pressure on Meta to adjust its content-delivery systems before the Oct. 25 runoff.