Battle over Meta’s alleged Bolsonaro bias intensifies days before Brazil presidential runoff

by | Oct 21, 2026 | World

Battle over Meta’s alleged Bolsonaro bias intensifies days before Brazil presidential runoff

A contentious dispute has emerged surrounding Meta’s role in Brazil’s upcoming presidential runoff between incumbent President Luiz Inácio Lula da Silva and far-right senator Flávio Bolsonaro. Days before the election, Lula’s legal team submitted complaints to the electoral court alleging that Meta, which owns Instagram, engaged in practices favoring Bolsonaro’s campaign. The allegations center on several incidents, including a period in which Lula’s team reported difficulty boosting Instagram posts while Bolsonaro’s campaign faced no such restrictions.

Multiple advocacy groups and watchdog organizations have released reports documenting what they characterize as potential bias in Meta’s content moderation practices. A watchdog called CTRL+Z catalogued over 1,100 reports of content removal, reach restrictions, and account limitations affecting primarily left-leaning profiles. Additionally, experiments revealed that Meta’s WhatsApp AI assistant refused to generate artwork featuring Lula and his ballot number while complying with similar requests for his opponent. Meta has categorically denied allegations of partisan interference, attributing the issues to technical glitches and global system outages affecting advertisers across multiple countries and political affiliations.

The electoral court intervened, ordering Meta to cease providing unequal treatment to candidates. A justice examining the matter found no evidence of deliberate interference warranting investigation but demanded Meta demonstrate the problems had been resolved. Meta responded by implementing human review processes to prevent automated restrictions. The company’s own oversight board expressed concern about recurring enforcement failures in Meta’s election integrity procedures, citing both the Brazil situation and similar issues with US activist accounts suspended during midterm voting campaigns.

Experts note the difficulty in establishing conclusive proof of bias, as only Meta possesses access to internal data necessary for definitive external scrutiny. With Google and TikTok prohibiting political advertising during this election, Meta’s platforms remain the sole large-scale channels for paid digital campaigning, generating £43 million in revenue. Some Lula supporters have speculated that Meta’s actions reflected US involvement, given the Trump administration’s ties to the Bolsonaro family, though no evidence has been presented to support such claims.

The controversy intensifies scrutiny over platform accountability during elections and highlights ongoing tensions between social media companies and electoral authorities regarding content moderation, transparency, and equal treatment of political candidates.

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