Regulation of Electoral Advertising: Balancing the Ballots

Electoral advertising plays a crucial role in consolidating democracy by allowing candidates to present their proposals to the electorate widely. To ensure this contest occurs under conditions of balance and fairness, Brazilian legislation sets stringent rules that govern the use of media and limit the influence of economic power. Understanding these regulatory mechanisms is essential for citizens to vote consciously and act as active watchdogs of the democratic process.

The Historical Evolution of Political Communication in Brazil

The history of political campaigns in Brazil directly reflects the social, technological, and institutional transformations that have shaped the country over recent decades. In the early elections following the restoration of democratic order, campaigns were markedly physical and analog, relying on large rallies, parades, and the mass distribution of printed leaflets. This traditional advertising model, while effective for establishing direct contact with the local electorate, required a monumental and expensive logistical structure, naturally favoring candidates backed by large corporations or with substantial personal wealth.

With the consolidation of television and radio as the main mass media in the mid‑20th century, campaign focus quickly shifted to electronic media. Television, in particular, became the grand stage for national political debate, demanding a more professional stance from candidates and the hiring of specialized marketers. This shift dramatically raised campaign costs, making the electoral contest even more unequal for smaller parties or candidates without access to major funding sources.

Against this backdrop of growing imbalance, the need for robust regulation became evident to ensure the legitimacy of the democratic process. Electoral legislation underwent successive reforms to curb abuses and guarantee equal opportunities among competitors. The most significant milestone in this evolution was the prohibition of corporate donations to electoral campaigns, adopted by the Supreme Federal Court in the mid‑2010s. This decision profoundly altered political financing in the country, shifting the focus to public funding and imposing strict spending limits for each contested office, laying the groundwork for the regulatory model we know today.

The Operation of Free Airtime on Radio and Television

Free electoral airtime on radio and television is one of the most important pillars of the Brazilian regulatory model, designed to mitigate the economic disparity between candidacies. Although called free, the space occupied by political parties is not cost‑free for society. Radio and TV stations, operating under public concession, receive a fiscal compensation from the state, deducted from their federal taxes, in exchange for granting time on their daily programming during the official campaign period.

The distribution of time among different political groups is based on parliamentary representation criteria. A small portion of the total available time is divided strictly equally among all registered parties, ensuring even the smallest groups have the opportunity to present their basic proposals to the public. The majority of the time, however, is distributed proportionally to the size of each party’s or coalition’s elected federal deputy bench from the previous election. This mechanism aims to reflect the political strength that the ballots conferred on each group, though it often sparks debate about the difficulty of political renewal for new parties.

Another fundamental rule governing this space is the absolute prohibition of any paid electoral advertising on radio and television. Unlike other countries where wealthy candidates can freely buy commercial blocks during peak audiences, in Brazil purchasing advertising space on these media is an electoral crime. Additionally, the law imposes severe restrictions on allowed formats, banning the use of complex special effects, montages, or studio resources that could turn the ad into a purely commercial piece, distorting the focus that should be given to proposals and the candidate’s track record.

Digital Advancement and New Frontiers of Online Advertising

The migration of political debate to the digital environment brought unprecedented challenges to electoral regulation, requiring new rules capable of handling the speed and reach of the internet. Social media, instant messaging apps, and search engines became the main political engagement channels, enabling direct, segmented, and low‑cost communication between candidates and voters. However, this same ease of dissemination opened space for abusive practices that threaten electoral balance.

To regulate internet use in campaigns, Brazilian law states that paid advertising on the network is allowed only in the form of content boosting, provided it is contracted directly by candidates, parties, or coalitions. It is strictly prohibited for ordinary citizens, companies, or any other legal entity to pay to promote a candidate’s content or to launch attacks against opponents online. Moreover, all technology platforms offering boosting services must maintain public and transparent ad libraries, detailing who paid for the ad, the amount invested, and the audience targeting criteria.

Privacy and the protection of voters’ personal data also became priorities in digital advertising regulation. Campaigns are prohibited from buying or using third‑party databases, such as commercial company registries, to send propaganda messages. Electronic or messaging app communications can only be sent to voters who voluntarily registered and provided explicit consent to receive such communications. Automated mass‑dispatch software is forbidden, aiming to prevent artificial manipulation of the public debate through coordinated use of automated accounts.

Combating Misinformation and Using Artificial Intelligence

In recent years, the systematic spread of fake news and rumors has become one of the greatest threats to the integrity of Brazilian elections. Misinformation directly affects voter will, polluting public debate with false data and unfounded attacks on candidates and democratic institutions. In response, the electoral justice system and campaign legislation adopted an extremely rigorous stance against the creation and spread of known false content.

The emergence and popularization of generative AI tools added an extra layer of complexity to this scenario. Today, it is possible to create hyper‑realistic audio, photos, and videos—known as deepfakes—that simulate speeches and behaviors of candidates that never occurred. To curb the harmful use of this technology, electoral rules absolutely prohibit the use of deepfakes to harm candidacies or deceive voters about any public figure’s stance. Any use of AI in electoral advertising, even if legitimate, such as audio or video enhancement, must be accompanied by a clear and visible notice informing the viewer of synthetic technology usage.

Digital platforms and social networks also share responsibility for cleaning the digital environment. While they are not required to pre‑censor user posts, technology companies must remove disinformation or content violating electoral rules swiftly upon judicial notification. Failure to comply can result in severe daily fines and, in extreme cases of repeated non‑compliance, temporary suspension of the platform’s services within national territory.

Monitoring Mechanisms and Penalties for Misconduct

The effectiveness of rules governing electoral advertising depends directly on the existence of a swift monitoring structure and severe penalties that deter illicit behavior. In Brazil, this function is carried out in a coordinated manner by the Electoral Justice, the Electoral Public Prosecutor’s Office, and the parties and candidates themselves, who act as mutual watchdogs of the process. The Electoral Public Prosecutor’s Office has the authority to act ex officio or upon request, investigating complaints and filing lawsuits to restore campaign legality.

Given the short duration of the campaign period, the processing of advertising oversight actions must be extremely fast. Legislation provides accelerated procedural rites so that judicial decisions are made in time to prevent an advertising abuse from irreversibly influencing election results. Judges and electoral courts can grant urgent provisional measures to order immediate removal of illegal leaflets, removal of social media posts, or suspension of radio and television ads.

The sanctions for violating advertising rules are scaled according to the gravity of the offense. Minor infractions usually result in loss of equivalent advertising time or financial fines, set to deter recurrence. However, serious violations involving economic power abuse, illicitly sourced funds, or misuse of mass media can lead to extreme penalties, such as cancellation of candidacy registration or the elected person’s diploma, plus a near‑decade ineligibility period, removing the offender from public life.

The Citizen’s Role in Auditing the Electoral Process

While state institutions play an indispensable role in election oversight, active civil society participation is the element that gives true strength and reach to campaign monitoring. The ordinary citizen has moved from passive spectator to an active agent of social control and audit. Technology has played a facilitating role, providing accessible tools for any voter to monitor campaign compliance in real time.

Financial transparency is one of the main control channels available to citizens. Electoral campaigns must submit periodic reports detailing all revenues collected and expenses incurred throughout the election. These data are consolidated and made publicly available on official portals maintained by the Electoral Justice. Through these platforms, anyone can verify a candidate’s donors, contracted suppliers, and how public electoral funds are applied, allowing the detection of overpricing or misallocation.

In addition to financial monitoring, voters have simplified official channels for reporting advertising irregularities. Mobile apps developed by electoral authorities allow direct submission of photos, videos, and reports of infractions committed on the streets or online, such as ballot‑box stuffing, posting prohibited signs, or distributing electoral giveaways. This collaborative and decentralized monitoring strengthens the integrity of the election, ensuring that the ballot outcome reflects the sovereign will of the electorate, free from manipulation and economic abuse.